128gb vs SanDisk SD Cards
Side-by-side price per gigabyte comparison across 254 products.
As of March 2026, 128gb averages $0.7891/GB across 1 products while SanDisk averages $0.8155/GB across 253 products on BuyPerUnit. 128gb offers 3% better value per gigabyte for sd cards.
128gb
Better ValueSanDisk
Cheapest Product
SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA256 GB · $28.20 · amazon
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | 128gb | 128gb Sdxc Class10 Uhs-i Card | 128GB | $0.7891 | $101.01 | newegg |
| 1 | SanDisk | SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA | 256 GB | $0.1102 | $28.20 | amazon |
| 2 | SanDisk | SanDisk SDSQUA4-400G-GN6MN MAT 400GB 8pin microSDXC r120MB/s C10 U1 A1 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter Retail | 400GB | $0.1209 | $48.35 | newegg |
| 3 | SanDisk | SANDISK - Ultra PLUS 1.5TB microSDXC UHS-I Memory Card | 1.5 TB | $0.1293 | $193.99 | bestbuy |
| 4 | SanDisk | SanDisk SDSDUNR-256G-GN3IN DHE 256GB 9pin SDXC r100MB/s C10 UHS-I SanDisk Ultra SDXC Memory Card Retail | 256GB | $0.1313 | $33.60 | newegg |
| 5 | SanDisk | SanDisk Ultra Plus 128GB SDXC UHS-I Memory Card | 128 GB | $0.1395 | $17.85 | amazon |
Which Should You Buy?
Based on current pricing data, 128gb offers better overall value for sd cards at an average of $0.7891/GB compared to SanDisk's $0.8155/GB — that's roughly 3% less per gigabyte.
128gb's best deal is the 128gb Sdxc Class10 Uhs-i Card (128GB) at $0.7891/GB, while SanDisk's cheapest option is the SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA (256 GB) at $0.1102/GB.
However, price per GB isn't everything — consider factors like warranty, performance specs, and your specific capacity needs. Check individual product pages for detailed specifications.
Frequently Asked Questions
Is 128gb or SanDisk cheaper per GB for sd cards?
As of March 2026, 128gb averages $0.7891/GB compared to SanDisk at $0.8155/GB. 128gb is approximately 3% cheaper per gigabyte on average.
How many 128gb and SanDisk sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 1 128gb products and 253 SanDisk products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest 128gb sd card per GB?
The cheapest 128gb option is the 128gb Sdxc Class10 Uhs-i Card at $0.7891/GB ($101.01 for 128GB).
What is the cheapest SanDisk sd card per GB?
The cheapest SanDisk option is the SanDisk 256GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 190MB/s, C10, U3, V30, 4K, 5K, A2, Micro SD Card - SDSQXAV-256G-GN6MA at $0.1102/GB ($28.20 for 256 GB).