Amazon Basics vs Silicon Power SD Cards

Side-by-side price per gigabyte comparison across 12 products.

As of March 2026, Amazon Basics averages $0.1839/GB across 4 products while Silicon Power averages $0.2781/GB across 8 products on BuyPerUnit. Amazon Basics offers 34% better value per gigabyte for sd cards.

Amazon Basics

Better Value

Avg $/GB$0.1839

Best $/GB$0.1555

Price Range$0.1555 – $0.2030

Products4

Cheapest Product

Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black

128 GB · $19.91 · amazon

Silicon Power

Avg $/GB$0.2781

Best $/GB$0.1378

Price Range$0.1378 – $0.5934

Products8

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	Amazon Basics	Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black	128 GB	$0.1555	$19.91	amazon
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	Amazon Basics	Amazon Basics 1TB microSDXC Card with Adapter for Smartphones, Full HD, Tablets, Drones, Action Cameras, Read Speed Up to 200MB/s, 1-Pack	1 TB	$0.1805	$180.50	amazon
2	Silicon Power	Silicon Power 128GB Elite SDXC UHS-I/U1 Class 10 Memory Card, Speed Up to 85MB/s (SP128GBSDXAU1V10)	128GB	$0.1562	$19.99	newegg
3	Amazon Basics	Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 256GB, Black	256 GB	$0.1966	$50.33	amazon
3	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
4	Amazon Basics	Amazon Basics 128GB microSDXC Memory Card with Adapter for Smartphones, Drones, Cameras, Full HD, Read Speed Up to 200MB/s, 1-Pack	128 GB	$0.2030	$25.99	amazon
4	Silicon Power	Silicon Power Elite microSDXC 256GB CL10 UHS-1 Full HD 100MB/sec Memory Card w/Adapter Modle	256GB	$0.2343	$59.99	newegg
5	Silicon Power	Silicon Power 64GB Elite SDXC UHS-I/U1 Class 10 Memory Card , Speed Up to 85MB/s (SP064GBSDXAU1V10)	64GB	$0.2498	$15.99	newegg

Which Should You Buy?

Based on current pricing data, Amazon Basics offers better overall value for sd cards at an average of $0.1839/GB compared to Silicon Power's $0.2781/GB — that's roughly 34% less per gigabyte.

Amazon Basics's best deal is the Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black (128 GB) at $0.1555/GB, while Silicon Power's cheapest option is the Silicon Power 1TB Superior microSDXC UHS-I (U3), V30 4K A1 Memory Card with Adapter (SP001TBSTXDV3V20SP) (1TB) at $0.1378/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 Amazon Basics or Silicon Power cheaper per GB for sd cards?

As of March 2026, Amazon Basics averages $0.1839/GB compared to Silicon Power at $0.2781/GB. Amazon Basics is approximately 34% cheaper per gigabyte on average.

How many Amazon Basics and Silicon Power sd cards does BuyPerUnit track?

BuyPerUnit currently tracks 4 Amazon Basics products and 8 Silicon Power products in the sd cards category, all ranked by price per gigabyte.

What is the cheapest Amazon Basics sd card per GB?

The cheapest Amazon Basics option is the Amazon Basics microSDXC Memory Card with Full Size Adapter, A2, U3, Read Speed up to 100 MB/s, 128GB, Black at $0.1555/GB ($19.91 for 128 GB).

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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