SanDisk vs Silicon Power SD Cards

Side-by-side price per gigabyte comparison across 355 products.

As of May 2026, SanDisk averages $1.7869/GB across 341 products while Silicon Power averages $0.7223/GB across 14 products on BuyPerUnit. Silicon Power offers 60% better value per gigabyte for sd cards.

SanDisk

Avg $/GB$1.7869

Best $/GB$0.1209

Price Range$0.1209 – $166.3562

Products341

Cheapest Product

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 · $48.35 · newegg

Silicon Power

Better Value

Avg $/GB$0.7223

Best $/GB$0.1378

Price Range$0.1378 – $3.3744

Products14

Cheapest Product

Silicon Power 1TB Superior microSDXC UHS-I (U3), V30 4K A1 Memory Card with Adapter (SP001TBSTXDV3V20SP)

1TB · $137.79 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	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
1	Silicon Power	Silicon Power 1TB Superior microSDXC UHS-I (U3), V30 4K A1 Memory Card with Adapter (SP001TBSTXDV3V20SP)	1TB	$0.1378	$137.79	newegg
2	SanDisk	SANDISK - Ultra PLUS 1.5TB microSDXC UHS-I Memory Card	1.5 TB	$0.1293	$193.99	bestbuy
2	Silicon Power	Silicon Power 1TB Superior Micro SDXC UHS-I (U3), V30 4K A2, High Speed MicroSD Card with Adapter	1TB	$0.1598	$159.79	newegg
3	SanDisk	SanDisk 512GB Ultra SDXC UHS-I / Class 10 Memory Card, Speed Up to 120MB/s (SDSDUN4-512G-GN6IN)	512GB	$0.1562	$79.99	newegg
3	Silicon Power	Silicon Power 512GB Inspire UHS-1 (U3) A2 TLC Micro SDXC Memory Card with USB Reader - Model SP512GBSTXLA2VC2	512GB	$0.1758	$89.99	newegg
4	SanDisk	SanDisk Ultra 1.5 TB microSDXC MicroSD Model SDSQUAC-1T50-GN6MA	1.5TB	$0.1600	$239.99	newegg
4	Silicon Power	Silicon Power 128GB Elite SDXC UHS-I/U1 Class 10 Memory Card, Speed Up to 85MB/s (SP128GBSDXAU1V10)	128GB	$0.1874	$23.99	newegg
5	SanDisk	SanDisk 512GB Ultra microSDXC A1 UHS-I/U1 Class 10 Memory Card with Adapter, Speed Up to 120MB/s (SDSQUA4-512G-GN6MA)	512GB	$0.1605	$82.20	newegg
5	Silicon Power	Silicon Power Elite microSDXC 256GB CL10 UHS-1 Full HD 100MB/sec Memory Card w/Adapter Modle	256GB	$0.2461	$62.99	newegg

Which Should You Buy?

Based on current pricing data, Silicon Power offers better overall value for sd cards at an average of $0.7223/GB compared to SanDisk's $1.7869/GB — that's roughly 60% less per gigabyte.

Silicon Power's best deal is the Silicon Power 1TB Superior microSDXC UHS-I (U3), V30 4K A1 Memory Card with Adapter (SP001TBSTXDV3V20SP) (1TB) at $0.1378/GB, while SanDisk's cheapest option is the 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) at $0.1209/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 SanDisk or Silicon Power cheaper per GB for sd cards?

As of May 2026, Silicon Power averages $0.7223/GB compared to SanDisk at $1.7869/GB. Silicon Power is approximately 60% cheaper per gigabyte on average.

How many SanDisk and Silicon Power sd cards does BuyPerUnit track?

BuyPerUnit currently tracks 341 SanDisk products and 14 Silicon Power products in the sd cards category, all ranked by price per gigabyte.

What is the cheapest SanDisk sd card per GB?

The cheapest SanDisk option is the SanDisk SDSQUA4-400G-GN6MN MAT 400GB 8pin microSDXC r120MB/s C10 U1 A1 UHS-I SanDisk Ultra microSDXC Memory Card w/out Adapter Retail at $0.1209/GB ($48.35 for 400GB).

What is the cheapest Silicon Power sd card per GB?

The cheapest Silicon Power option is the Silicon Power 1TB Superior microSDXC UHS-I (U3), V30 4K A1 Memory Card with Adapter (SP001TBSTXDV3V20SP) at $0.1378/GB ($137.79 for 1TB).

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