Sp Silicon Power vs Unirex SD Cards
Side-by-side price per gigabyte comparison across 8 products.
As of March 2026, Sp Silicon Power averages $0.4096/GB across 2 products while Unirex averages $0.4149/GB across 6 products on BuyPerUnit. Sp Silicon Power offers 1% better value per gigabyte for sd cards.
Sp Silicon Power
Better ValueCheapest Product
Silicon Power 128GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card for Cams, DJI Pocket and Drones128 GB · $24.97 · amazon
Unirex
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | Sp Silicon Power | Silicon Power 128GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card for Cams, DJI Pocket and Drones | 128 GB | $0.1951 | $24.97 | amazon |
| 1 | Unirex | Unirex UMS645MUHS1 64GB microSDHC Card | 64GB | $0.1873 | $11.99 | newegg |
| 2 | Sp Silicon Power | Silicon Power 32GB 3D NAND High Speed MicroSD Card with Adapter | 32 GB | $0.6241 | $19.97 | amazon |
| 2 | Unirex | Unirex Full Size SD Card 64GB | 64GB | $0.3123 | $19.99 | newegg |
| 3 | Unirex | Unirex MSU325 32GB MicroSD Card | 32GB | $0.3434 | $10.99 | newegg |
| 4 | Unirex | Unirex MSW325M 4-in-1 Usb/Micro USB Reader and SD Adapter (32GB) | 32GB | $0.3975 | $12.72 | newegg |
| 5 | Unirex | Unirex 16Gb Microsd Card With Sd Adapter, Msu165 | 16GB | $0.6244 | $9.99 | newegg |
Which Should You Buy?
Based on current pricing data, Sp Silicon Power offers better overall value for sd cards at an average of $0.4096/GB compared to Unirex's $0.4149/GB — that's roughly 1% less per gigabyte.
Sp Silicon Power's best deal is the Silicon Power 128GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card for Cams, DJI Pocket and Drones (128 GB) at $0.1951/GB, while Unirex's cheapest option is the Unirex UMS645MUHS1 64GB microSDHC Card (64GB) at $0.1873/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 Sp Silicon Power or Unirex cheaper per GB for sd cards?
As of March 2026, Sp Silicon Power averages $0.4096/GB compared to Unirex at $0.4149/GB. Sp Silicon Power is approximately 1% cheaper per gigabyte on average.
How many Sp Silicon Power and Unirex sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 2 Sp Silicon Power products and 6 Unirex products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest Sp Silicon Power sd card per GB?
The cheapest Sp Silicon Power option is the Silicon Power 128GB Micro SD Card U3 SDXC Up to 100MB/s High Speed Memory Card for Cams, DJI Pocket and Drones at $0.1951/GB ($24.97 for 128 GB).
What is the cheapest Unirex sd card per GB?
The cheapest Unirex option is the Unirex UMS645MUHS1 64GB microSDHC Card at $0.1873/GB ($11.99 for 64GB).