SD Cards

Ranked by price per gigabyte

Updated daily · No paid placements

As of May 2026, the cheapest sd cards on BuyPerUnit costs $0.0820/GB — a Unknown 512GB Micro SD Card, microSDXC UHS-I Flash Memory Card TF Card, High Read Speed 120MB/s, C10, U3, A2, V30, for Full HD, 4K UHD Video Recording (512 GB) available at Amazon for $41.99. BuyPerUnit tracks 906 sd cards products across Amazon, Best Buy, and Newegg, updated daily. The average price is $0.1975/GB.
Ranked by:$/GB
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1

512GB Micro SD Card, microSDXC UHS-I Flash Memory Card TF Card, High Read Speed 120MB/s, C10, U3, A2, V30, for Full HD, 4K UHD Video Recording

UnknownAmazon58% below avg

Capacity

512 GB

Price

$41.99

$/GB

$0.082

Check Price at Amazon
2

512GB Micro SD Card, microSDXC UHS-I Flash Memory Card TF Card, High Read Speed 120MB/s, C10, U3, A2, V30, for Full HD, 4K UHD Video Recording

UnknownAmazon56% below avg

Capacity

512 GB

Price

$43.99

$/GB

$0.086

Check Price at Amazon
3

Verbatim Memory Card SDXC 90MB/s Read Speed 256GB BK/GD 99141

VerbatimNeweggSD Card41% below avg

Capacity

256GB

Price

$29.99

$/GB

$0.117

Check Price at Newegg
4

fanxiang 256GB SDXC Memory Card SD Card, UHS-I, C10, U3, V30, Full-HD & 4K Video, Up to 100/50 MB/s Read/Write, for Photography Enthusiast, Video Creator, Videographer

UnknownAmazon41% below avg

Capacity

256 GB

Price

$29.99

$/GB

$0.117

Check Price at Amazon
5

SanDisk SDSQUA4-400G-GN6MN MAT 400GB 8pin microSDXC r120MB/s C10 U1 A1 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter Retail

SanDiskNeweggmicroSD39% below avg

Capacity

400GB

Price

$48.35

$/GB

$0.121

Check Price at Newegg
6

KingSpec MIXAGE 512GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash MicroSD 512GB 1 Pack

KingSpecNeweggmicroSD33% below avg

Capacity

512GB

Price

$67.99

$/GB

$0.133

Check Price at Newegg
7

4CH MDVR Loop Recording Support 512GB For Single SD Card Mobile DVR For Bus Truck

4CHNeweggSD Card32% below avg

Capacity

512GB

Price

$68.42

$/GB

$0.134

Check Price at Newegg
8

Team Group 512GB Elite 4K SD Card UHS-I U3 V30 Read/Write Speed Up to 100/90MB/s (TESDXC512GIV30P69)

TeamNeweggSD Card31% below avg

Capacity

512GB

Price

$69.99

$/GB

$0.137

Check Price at Newegg
9

Kingston Canvas Go! Plus 512 Gb Class 10/Uhs-I (U3) Sdxc

KingstonNeweggSD Card29% below avg

Capacity

512GB

Price

$71.58

$/GB

$0.140

Check Price at Newegg
10

512GB Transcend UHS-I SD 340S Ultra Performance SD Card U3 A1 V30

TranscendNeweggSD Card28% below avg

Capacity

512GB

Price

$72.99

$/GB

$0.143

Check Price at Newegg
11

Team Group 256GB Elite microSDXC UHS-I U3, V30, A1, 4K UHD Micro SD Card with SD Adapter, Speed Up to 100MB/s (TEAUSDX256GIV30A103)

TeamNeweggmicroSD25% below avg

Capacity

256GB

Price

$37.99

$/GB

$0.148

Check Price at Newegg
12

Kingston 256GB Canvas Select Plus SD Card | Up to 150MB/s | Class 10, UHS-I, U1, V10 | SDS3/256GB

KingstonAmazon25% below avg

Capacity

256 GB

Price

$37.99

$/GB

$0.148

Check Price at Amazon
13

TEAMGROUP 512GB T-Create Expert S. M.A. R.T Monitored A2 microSDXC UHSI-I/U3 V30 4K High speed memory card with adapter, Compatible with GoPro,...

TeamGroupNeweggmicroSD23% below avg

Capacity

512GB

Price

$77.99

$/GB

$0.152

Check Price at Newegg
14

KingSpec MIXAGE 256GB microSDXC Memory Cards, UHS-I, V30, A1, 4K UHD Micro SD Card, Speed Up to 175MB/s, 3D NAND Flash

KingSpecNeweggmicroSD21% below avg

Capacity

256GB

Price

$39.99

$/GB

$0.156

Check Price at Newegg
15

ADATA 256GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX256GUI3V30SA2-RA1)

ADATANeweggmicroSD21% below avg

Capacity

256GB

Price

$39.99

$/GB

$0.156

Check Price at Newegg
16

256GB SD Card UHS-I Memory Card Fast Storage, Read Speed 100MB/s, Write Speed 90MB/s, C10, U3, V30, Full-HD & 4K Video, SD Card 256GB, Must-Have for Professional Photographers-EF2

UnknownAmazon21% below avg

Capacity

256 GB

Price

$39.99

$/GB

$0.156

Check Price at Amazon
17

SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN)

SanDiskNeweggSD Card21% below avg

Capacity

512GB

Price

$79.99

$/GB

$0.156

Check Price at Newegg
18

Lexar 512GB Play Blue Micro SD Card, UHS-I, C10, U3, V30, A2, 4K, Up to 160MB/s microSDXC Memory Card, Expanded Storage for Nintendo-Switch 1, Gaming Devices, Smartphones, Tablets (LMSPLBL512G-BNNNU)

LexarAmazonmicroSD90d low

Capacity

512 GB

Price

$79.99

$/GB

$0.156

Check Price at Amazon
19

Team Group 512GB Elite microSDXC UHS-I U3, V30, A1, 4K UHD Micro Card with SD Adapter, Speed Up to 100MB/s (TEAUSDX512GIV30A103)

TeamNeweggmicroSD21% below avg

Capacity

512GB

Price

$79.99

$/GB

$0.156

Check Price at Newegg
20

SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 120MB/s (SDSQUA4-512G-GN6MA)

SanDiskNeweggmicroSD

Capacity

512GB

Price

$82.20

$/GB

$0.161

Check Price at Newegg
21

Team Group 512GB Expert SD Card UHS-II / U3 / V60 Read/Write Speed Up to 280/180MB/s (TTCSDY512GIIV6001)

TeamNeweggSD Card

Capacity

512GB

Price

$82.99

$/GB

$0.162

Check Price at Newegg
22

VERBATIM VER99828 256GB Premium SDXC Memory Card

VerbatimNeweggSD Card

Capacity

256GB

Price

$41.99

$/GB

$0.164

Check Price at Newegg
23

SanDisk 256GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 100MB/s (SDSQUAR-256G-GN6MA)

SanDiskNeweggmicroSD

Capacity

256GB

Price

$42.97

$/GB

$0.168

Check Price at Newegg
24

Silicon Power 256GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card with Adapter for Nintendo-Switch, Cams and Drones

SP Silicon PowerAmazonmicroSD90d low

Capacity

256 GB

Price

$42.97

$/GB

$0.168

Check Price at Amazon
25

PNY P-SDU512V32100PX-GE 512GB Premier-X Class 10 U3 V30 microSDXC Flash Memory Card, Black

PNYAmazon

Capacity

512 GB

Price

$86.99

$/GB

$0.170

Check Price at Amazon
26

Team Group 512GB PRO+ SDXC U3 V30 A2 4K SD Card, Read/Write Speed Up to 160/90MB/s (TPPSDX512GIA2V3001)

TeamGroupNeweggSD Card

Capacity

512GB

Price

$87.99

$/GB

$0.172

Check Price at Newegg
27

SanDisk SDSQUNR-256G-GN3MN 256GB 8pin microSDXC r100MB/s C10 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter

SanDiskNeweggmicroSD

Capacity

256GB

Price

$44.95

$/GB

$0.176

Check Price at Newegg
28

Sandisk Ultra 256GB 100MB/s Class 10 Micro SDXC Memory Card Full HD Video with SD Adapter

SanDiskNeweggmicroSD

Capacity

256GB

Price

$44.99

$/GB

$0.176

Check Price at Newegg
29

SanDisk 512GB Extreme microSDXC UHS-I/U3 A2 Memory Card with Adapter, Speed Up to 160MB/s (SDSQXA1-512G-GN6MA)

SanDiskNeweggmicroSD

Capacity

512GB

Price

$89.99

$/GB

$0.176

Check Price at Newegg
30

PNY P-SDUX512U3100PRO-GE 512GB PRO Elite Class 10 U3 V30 microSDXC Flash Memory Card - 100MB/s, Class 10, U3, V30, A2, 4K UHD, Full HD, UHS-I, Micro SD

PNYAmazon

Capacity

512 GB

Price

$89.99

$/GB

$0.176

Check Price at Amazon
31

SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 100MB/s (SDSQUAR-512G-GN6MA)

SanDiskNeweggmicroSD

Capacity

512GB

Price

$90.99

$/GB

$0.178

Check Price at Newegg
32

ADATA 512GB Premier Pro microSDXC UHS-I U3 / Class 10 V30 A2 Memory Card with SD Adapter, Speed Up to 100MB/s (AUSDX512GUI3V30SA2-RA1)

ADATANeweggmicroSD

Capacity

512GB

Price

$91.76

$/GB

$0.179

Check Price at Newegg
33

Kingston Canvas Select Plus 256 GB Class 10/UHS-I U1 V10 SDXC 1 SDS3256GB

KingstonNeweggSD Card

Capacity

256GB

Price

$46.29

$/GB

$0.181

Check Price at Newegg
34

SanDisk SDSDUNR-256G-GN3IN DHE 256GB 9pin SDXC r100MB/s C10 UHS-I SanDisk Ultra SDXC Memory Card Retail

SanDiskNeweggSD Card

Capacity

256GB

Price

$47.15

$/GB

$0.184

Check Price at Newegg
35

SANDISK 512GB Extreme microSDXC UHS-I Memory Card with Adapter - C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-512G-GN6MA

SanDiskAmazonmicroSD90d low

Capacity

512 GB

Price

$94.74

$/GB

$0.185

Check Price at Amazon
36

[Older Version] SanDisk 512GB Ultra microSDXC UHS-I Memory Card with Adapter - 120MB/s, C10, U1, Full HD, A1, Micro SD Card - SDSQUA4-512G-GN6MA

SanDiskAmazonmicroSD

Capacity

512 GB

Price

$94.83

$/GB

$0.185

Check Price at Amazon
37

SanDisk 512 GB MicroSDXC Ultra 150MB Card Only – Extended Capacity SD (MicroSDHC)

SanDiskAmazonSD Card

Capacity

512 GB

Price

$94.99

$/GB

$0.186

Check Price at Amazon
38

Made for Amazon SanDisk 256GB microSD Memory Card for Fire Tablets and Fire -TV

SanDiskAmazon10yrmicroSD

Capacity

256 GB

Price

$47.50

$/GB

$0.186

Check Price at Amazon
39

Kingston Canvas Select Plus 256GB microSDXC U3 A1 Class 10 100MB/s SDCS2/256GB

KingstonNeweggmicroSD

Capacity

256GB

Price

$48.75

$/GB

$0.190

Check Price at Newegg
40

Kingston Canvas Select Plus 512 GB Class 10/UHS-I U3 V30 microSDXC 1 SDCS3512GB

KingstonNeweggmicroSD90d low

Capacity

512GB

Price

$97.77

$/GB

$0.191

Check Price at Newegg
41

Kingston Canvas Select Plus 256GB microSDXC Flash Card w/ Adapter Model SDCS2/256GBCR

KingstonNeweggmicroSD

Capacity

256GB

Price

$48.95

$/GB

$0.191

Check Price at Newegg
42

Anpviz 5MP PoE IP Turret Camera,Smart Color Night Vision 100ft, 512GB SD Slot,Human & Vehicle Detection,Built-in Mic,Security IP Camera Outdoor...

AnpvizNeweggSD Card

Capacity

512GB

Price

$97.97

$/GB

$0.191

Check Price at Newegg
43

Lexar Professional 512GB Silver Plus SDXC UHS-I Card - up to 205MB/s read - C10, U3, V30, 4K UHD LSDSIPL512G-BNNNU

LexarNeweggSD Card

Capacity

512GB

Price

$97.99

$/GB

$0.191

Check Price at Newegg
44

Kingston Canvas Select Plus - Flash memory card (microSDXC to SD adapter included) - 256 GB - A1 / Video Class V30 / UHS

KingstonNeweggmicroSD

Capacity

256GB

Price

$49.25

$/GB

$0.192

Check Price at Newegg
45

SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 150MB/s (SDSQUAC-512G-GN6MA)

SanDiskNeweggmicroSD

Capacity

512GB

Price

$98.99

$/GB

$0.193

Check Price at Newegg
46

Lexar High-Performance 800x PRO BLUE Series 256GB SDXC Memory Card Class 10 UHS-I V30 (LSD0800P256G-BNNNU)

LexarNeweggSD Card

Capacity

256GB

Price

$49.61

$/GB

$0.194

Check Price at Newegg
47

SanDisk 256GB Extreme microSDXC UHS-I/U3 A2 Memory Card with Adapter, Speed Up to 160MB/s (SDSQXA1-256G-GN6MA)

SanDiskNeweggmicroSD

Capacity

256GB

Price

$49.99

$/GB

$0.195

Check Price at Newegg
48

TEAMGROUP 256GB T-Create Expert S. M.A. R.T Monitored A2 microSDXC UHSI-I/U3 V30 4K High speed memory card with adapter, Compatible with GoPro,...

TeamGroupNeweggmicroSD

Capacity

256GB

Price

$49.99

$/GB

$0.195

Check Price at Newegg
49

SanDisk 256GB High Endurance microSDXC C10, U3, V30, 4k UHD Memory Card with Adapter (SDSQQNR-256G-GN6IA)

SanDiskNeweggmicroSD90d low

Capacity

256GB

Price

$49.99

$/GB

$0.195

Check Price at Newegg
50

Kingston Canvas Select Plus 256GB microSDXC Memory (Flash Memory) Model SDCS2/256GBSP

KingstonNeweggmicroSD

Capacity

256GB

Price

$49.99

$/GB

$0.195

Check Price at Newegg
51

SanDisk Ultra 512GB MicroSD Memory Card Model SDSQUJQ-512G-GZ6MA

SanDiskNeweggmicroSD90d low

Capacity

512GB

Price

$99.99

$/GB

$0.195

Check Price at Newegg
52

SANDISK 512GB Ultra microSD UHS-I Card - Up to 195MB/s Read Speed, Full HD Video, V10, U1, C10, A3 - SDSQUJQ-512G-GZ6MA

SanDiskAmazon

Capacity

512 GB

Price

$99.99

$/GB

$0.195

Check Price at Amazon
53

SANDISK 256GB Extreme microSDXC UHS-I Memory Card with Adapter - C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA

SanDiskAmazonmicroSD

Capacity

256 GB

Price

$50.00

$/GB

$0.195

Check Price at Amazon
54

Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 256GB, Black

Amazon BasicsAmazon2yrSD Card

Capacity

256 GB

Price

$50.26

$/GB

$0.196

Check Price at Amazon
55

SANDISK 256GB Ultra microSDXC UHS-I Memory Card with Adapter - Up to 150MB/s, C10, U1, Full HD, A1, MicroSD Card - SDSQUAC-256G-GN6MA

SanDiskAmazon10yrmicroSD

Capacity

256 GB

Price

$52.90

$/GB

$0.207

Check Price at Amazon
56

SanDisk 512GB Extreme microSDXC UHS-I/U3 A2 Micro SD Card with Adapter, Speed Up to 190MB/s (SDSQXAV-512G-GN6MA)

SanDiskNeweggmicroSD

Capacity

512GB

Price

$106.99

$/GB

$0.209

Check Price at Newegg
57

Kingston Canvas Go! Plus 256 GB Class 10/UHS-I U3 V30 microSDXC SDCG4256GB

KingstonNeweggmicroSD

Capacity

256GB

Price

$53.87

$/GB

$0.210

Check Price at Newegg
58

Kingston Canvas Select Plus 256 GB Class 10/UHS-I (U1) V10 microSDXC - 150 MB/s Read

KingstonNeweggmicroSD

Capacity

256GB

Price

$54.32

$/GB

$0.212

Check Price at Newegg
59

512GB Transcend High Endurance 350V microSDXC Memory Card CL10 UHS-I for Dashcams and Surveillance

TranscendNeweggmicroSD

Capacity

512GB

Price

$108.66

$/GB

$0.212

Check Price at Newegg
60

SanDisk Ultra 256GB MicroSD Memory Card Model SDSQUJQ-256G-GZ6MA

SanDiskNeweggmicroSD90d low

Capacity

256GB

Price

$54.99

$/GB

$0.215

Check Price at Newegg
61

Team Group 256GB PRO+ SDXC U3 V30 A2 4K SD Card, Read/Write Speed Up to 160/120MB/s (TPPSDX256GIA2V3001)

TeamNeweggSD Card

Capacity

256GB

Price

$54.99

$/GB

$0.215

Check Price at Newegg
62

Team Group 256GB Elite 4K SD Card UHS-I U3 V30 Read/Write Speed Up to 100/50MB/s (TESDXC256GIV3069)

TeamNeweggSD Card

Capacity

256GB

Price

$54.99

$/GB

$0.215

Check Price at Newegg
63

SanDisk Ultra microSDHC Memory Card 512GB 120MBs C10 UHS U1 A1 Card WAdapter

SanDiskNeweggmicroSD

Capacity

512GB

Price

$109.99

$/GB

$0.215

Check Price at Newegg
64

PNY 512GB PRO Elite Prime™ C10 U3 V30 A2 microSDXC Flash Memory Card – Ultra-Fast Speeds, Read 200MB/s, Write 150MB/s, 4K UHD, Full HD, UHS-I, for Smartphones, Drones, Action Cameras

PNYAmazonmicroSD

Capacity

512 GB

Price

$109.99

$/GB

$0.215

Check Price at Amazon
65

SanDisk Extreme 512GB MicroSD Memory Card Model SDSQXH9-512G-GZ6MA

SanDiskNeweggmicroSD

Capacity

512GB

Price

$109.99

$/GB

$0.215

Check Price at Newegg
66

SANDISK 512GB Extreme microSD UHS-I Card - Up to 245MB/s Read Speed and 170MB/s Write Speed, 5.3K Video, 4K UHD Video, high-Performance for Action cams, Drones, Android Devices - SDSQXH9-512G-GZ6MA

SanDiskAmazon

Capacity

512 GB

Price

$109.99

$/GB

$0.215

Check Price at Amazon
67

Lexar 512GB Professional Silver Plus Micro SD Card, UHS-I, C10, U3, V30, Full HD & 4K, Up to 205/150 MB/s microSDXC Memory Card, for Videographers, Gamers (LMSSIPL512G-BNANU)

LexarAmazon

Capacity

512 GB

Price

$109.99

$/GB

$0.215

Check Price at Amazon
68

SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 150MB/s (SDSDUNC-512G-GN6IN)

SanDiskNeweggSD Card

Capacity

512GB

Price

$111.97

$/GB

$0.219

Check Price at Newegg
69

512GB Transcend 300S microSDXC UHS-I U3 V30 A1 CL10 Memory Card with SD Adapter 95MB/sec

TranscendNeweggmicroSD

Capacity

512GB

Price

$112.17

$/GB

$0.219

Check Price at Newegg
70

SanDisk 256GB Ultra SDXC UHS-I/Class 10 Memory Card, Speed Up to 100MB/s (SDSDUNR-256G-GN6IN)

SanDiskNeweggSD Card

Capacity

256GB

Price

$56.94

$/GB

$0.222

Check Price at Newegg
71

SanDisk 512GB microSD Express microSD Card - Up to 880MB/s Read, Up to 650MB/s Write, 220MB/s Sustained Write, U3, C10 - SDSQXFN-512G-GN4NN

SanDiskNeweggmicroSD90d low

Capacity

512GB

Price

$115.45

$/GB

$0.225

Check Price at Newegg
72

SABRENT Rocket V60 512GB SD UHS-II Memory Card R270MB/s W170MB/s (SD-TL60-512GB)

SabrentNeweggSD Card

Capacity

512GB

Price

$116.99

$/GB

$0.228

Check Price at Newegg
73

Samsung microSD Express Card – 256GB for Nintendo Switch™ 2

NintendoAmazon1yrmicroSD

Capacity

256 GB

Price

$59.00

$/GB

$0.230

Check Price at Amazon
74

samsung evo plus microsd sdxc u3 class 10 a2 memory card 130mb/s with sd adapter 2021 (512gb)

SamsungNeweggmicroSD

Capacity

512GB

Price

$119.75

$/GB

$0.234

Check Price at Newegg
75

SanDisk SDSQUA4-512G-GN6MN MAS 512GB 8pin microSDXC r120MB/s C10 U1 A1 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter Retail

SanDiskNeweggmicroSD

Capacity

512GB

Price

$119.75

$/GB

$0.234

Check Price at Newegg
76

SanDisk 512GB Extreme PLUS UHS-I microSDXC Memory Card with SD Adapter

SanDiskNeweggmicroSD

Capacity

512GB

Price

$119.85

$/GB

$0.234

Check Price at Newegg
77

SANDISK 256GB High Endurance Video microSDXC Card with Adapter for dash cam and home monitoring systems - C10, U3, V30, 4K UHD, Micro SD Card - SDSQQNR-256G-GN6IA

SanDiskAmazonmicroSD

Capacity

256 GB

Price

$59.95

$/GB

$0.234

Check Price at Amazon
78

Samsung P9 Express microSD Express Card, 256GB microSDXC Memory Card, Up to 800 MB/s, for Nintendo-Switch ™ 2, (MB MK256T/AM)

SamsungAmazon3yrmicroSD

Capacity

256 GB

Price

$59.99

$/GB

$0.234

Check Price at Amazon
79

PNY 256GB Elite-X Class 10 U3 V30 SDXC Flash Memory Card - 100MB/s, Class 10, U3, V30, 4K UHD, Full HD, UHS-I, Full Size SD (Pack of 1)

PNYAmazonSD Card

Capacity

256 GB

Price

$59.99

$/GB

$0.234

Check Price at Amazon
80

AXE MEMORY SD Card 256GB V60, 245MB/s UHS-II U3 4K Ultra Full HD, Professional Grade SDXC Memory Card

AXENeweggSD Card

Capacity

256GB

Price

$59.99

$/GB

$0.234

Check Price at Newegg
81

SanDisk 512GB microSD Express Card - Works with Nintendo-Switch 2, Up to 880MB/s Read, Up to 650MB/s Write, 220MB/s Sustained Write, U3, C10 - SDSQXFN-512G-GN4N

SanDiskAmazonmicroSD

Capacity

512 GB

Price

$119.99

$/GB

$0.234

Check Price at Amazon
82

SanDisk Ultra GO microSD 512GB microSDXC Memory Card, Up to 190MB/s UHS-I A1 C10 V10 for Android SDSQUGN-512G-GN6MN

SanDiskNeweggmicroSD

Capacity

512GB

Price

$119.99

$/GB

$0.234

Check Price at Newegg
83

256GB microSDXC UHS-I Memory Card

256GBNeweggmicroSD

Capacity

256GB

Price

$60.71

$/GB

$0.237

Check Price at Newegg
84

SanDisk High Endurance 512GB UHS-I microSDXC Memory Card with SD Adapter

SanDiskNeweggmicroSD

Capacity

512GB

Price

$123.95

$/GB

$0.242

Check Price at Newegg
85

AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,...

AGINeweggmicroSD

Capacity

512GB

Price

$123.99

$/GB

$0.242

Check Price at Newegg
86

Transcend 256GB 300S microSDXC CL10 V30 A1 Memory Card with SD Adapter

TranscendNeweggmicroSD

Capacity

256GB

Price

$62.99

$/GB

$0.246

Check Price at Newegg
87

Silicon Power Elite microSDXC 256GB CL10 UHS-1 Full HD 100MB/sec Memory Card w/Adapter Modle

Silicon PowerNeweggmicroSD

Capacity

256GB

Price

$62.99

$/GB

$0.246

Check Price at Newegg
88

SanDisk 256GB Extreme microSDXC UHS-I/U3 A2 Micro SD Card with Adapter, Speed Up to 190MB/s (SDSQXAV-256G-GN6MA)

SanDiskNeweggmicroSD

Capacity

256GB

Price

$62.99

$/GB

$0.246

Check Price at Newegg
89

PNY 256GB PRO Elite Prime™ C10 U3 V30 A2 microSDXC Flash Memory Card – Ultra-Fast Speeds, Read 200MB/s, Write 150MB/s, 4K UHD, Full HD, UHS-I, for Smartphones, Drones, Action Cameras

PNYAmazonmicroSD

Capacity

256 GB

Price

$63.32

$/GB

$0.247

Check Price at Amazon
90

SanDisk 256GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 150MB/s (SDSDUNC-256G-GN6IN)

SanDiskNeweggSD Card

Capacity

256GB

Price

$63.95

$/GB

$0.250

Check Price at Newegg
91

Lexar PLAY PRO 512GB microSDXC Express Card

LexarNeweggmicroSD

Capacity

512GB

Price

$129.62

$/GB

$0.253

Check Price at Newegg
92

SANDISK 256GB Extreme microSD UHS-I Card - Up to 245MB/s Read Speed and 170MB/s Write Speed, 5.3K Video, 4K UHD Video, high-Performance for Action cams, Drones, Android Devices - SDSQXH9-256G-GZ6MA

SanDiskAmazonmicroSD

Capacity

256 GB

Price

$64.99

$/GB

$0.254

Check Price at Amazon
93

AGI 256GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,...

AGINeweggmicroSD

Capacity

256GB

Price

$64.99

$/GB

$0.254

Check Price at Newegg
94

SanDisk Extreme 256GB MicroSD Memory Card Model SDSQXH9-256G-GZ6MA

SanDiskNeweggmicroSD90d low

Capacity

256GB

Price

$64.99

$/GB

$0.254

Check Price at Newegg
95

SANDISK 256GB Ultra SDHC UHS-I Card and SDXC UHS-I Card - Up to 195MB/s Read Speed, Full HD Video, V10, U1, C10 - SDSDUVQ-256G-GN6IN

SanDiskAmazon

Capacity

256 GB

Price

$64.99

$/GB

$0.254

Check Price at Amazon
96

SanDisk Ultra 512GB Secure Digital Extended Capacity (SDXC) Memory Card Model SDSDUVQ-512G-GN6IN

SanDiskNeweggSD Card

Capacity

512GB

Price

$130.13

$/GB

$0.254

Check Price at Newegg
97

512GB Transcend 340S microSD UHS-I U3 A2 Ultra Performance Memory Card w/Adapter

TranscendNeweggmicroSD

Capacity

512GB

Price

$130.49

$/GB

$0.255

Check Price at Newegg
98

Anpviz 8MP PoE IP Camera, Built-in Mic, 512GB SD Slot, Security 4K Turret IP Camera Outdoor Indoor, Smart Color Night Vision 100ft, Human & Vehicle...

AnpvizNeweggSD Card

Capacity

512GB

Price

$131.06

$/GB

$0.256

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99

SanDisk 256GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card for Chromebook, Speed Up to 120MB/s (SDSQUA4-256G-GN6FA)

SanDiskNeweggmicroSD

Capacity

256GB

Price

$65.95

$/GB

$0.258

Check Price at Newegg
100

SanDisk SDSQUA4-256G-GN6MN DJT 256GB 8pin microSDXC r120MB/s C10 U1 A1 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter Retail

SanDiskNeweggmicroSD

Capacity

256GB

Price

$65.95

$/GB

$0.258

Check Price at Newegg
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Find the Cheapest SD Cards Per GB in 2026

Looking for the best SD card deals? BuyPerUnit compares 906+ SD cards and microSD cards ranked by price per gigabyte — so you can find the most storage for your money.

Right now, the cheapest SD card storage starts at just $0.082/GB, while the average across all cards is $0.198/GB. Whether you need storage for your camera, drone, Nintendo Switch, or phone, we help you find the best value.

SD Card Buying Guide: Get the Best Value

1. Bigger Cards = Lower $/GB

A 256GB card at $25 ($0.098/GB) beats a 64GB card at $12 ($0.188/GB) in value. If you can afford more capacity upfront, you'll save long-term.

2. Match Speed to Your Device

4K video needs U3/V30 speed. 1080p or photos need U1/Class 10. Don't overpay for speed your device can't use.

3. microSD + Adapter

microSD cards with adapters work in both slots. They're usually the same price and offer more flexibility than full-size SD cards.

4. Stick to Known Brands

SanDisk, Samsung, and Lexar are reliable. Avoid no-name cards with suspiciously low prices — they often have fake capacity ratings.

microSD vs SD Card: Which Should You Buy?

TypeTypical $/GBMax CapacityBest For
microSD$0.05-0.151TBPhones, Switch, GoPro, drones
SD Card$0.05-0.201TBDSLR cameras, camcorders

Frequently Asked Questions About SD Cards

What's the cheapest microSD card per GB right now?
The cheapest SD card storage per gigabyte is currently $0.0820/GB. Higher capacity cards (256GB+) typically offer the lowest price per gigabyte.
What SD card speed do I need for 4K video?
For 4K video recording, you need at least a U3 or V30 rated card. These can write at 30MB/s or faster, which is necessary for 4K bitrates. For 8K or high-bitrate 4K, look for V60 or V90 cards.
What size SD card do I need for Nintendo Switch?
Most Switch games are 5-15GB, with some up to 30GB. A 256GB card holds 15-40 games and offers the best value. 512GB or 1TB is overkill unless you have a huge digital library. Any U1/Class 10 card is fast enough for the Switch.
Are SanDisk and Samsung SD cards worth the premium?
SanDisk and Samsung have excellent reliability and warranties. For professional use (weddings, paid work), the peace of mind is worth it. For casual use, budget brands like Silicon Power or Lexar offer good value with solid reliability.

How We Find the Cheapest SD Cards

BuyPerUnit calculates the price per gigabyte for every SD card and microSD card by dividing the current price by the storage capacity. This gives you the true cost of storage, making it easy to compare products of different sizes.

Products are ranked from best value (lowest $/GB) to worst. We update prices regularly from Amazon to ensure you always see current deals. Click any product to view the latest price and purchase directly.

BuyPerUnit is an affiliate site. We earn a commission when you purchase through our links at no extra cost to you.

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