4ch vs Sp Silicon Power SD Cards
Side-by-side price per gigabyte comparison across 3 products.
As of March 2026, 4ch averages $0.1336/GB across 1 products while Sp Silicon Power averages $0.4096/GB across 2 products on BuyPerUnit. 4ch offers 67% better value per gigabyte for sd cards.
4ch
Better ValueCheapest Product
4CH MDVR Loop Recording Support 512GB For Single SD Card Mobile DVR For Bus Truck512GB · $68.42 · newegg
Sp Silicon Power
Cheapest 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
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | 4ch | 4CH MDVR Loop Recording Support 512GB For Single SD Card Mobile DVR For Bus Truck | 512GB | $0.1336 | $68.42 | newegg |
| 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 |
| 2 | Sp Silicon Power | Silicon Power 32GB 3D NAND High Speed MicroSD Card with Adapter | 32 GB | $0.6241 | $19.97 | amazon |
Which Should You Buy?
Based on current pricing data, 4ch offers better overall value for sd cards at an average of $0.1336/GB compared to Sp Silicon Power's $0.4096/GB — that's roughly 67% less per gigabyte.
4ch's best deal is the 4CH MDVR Loop Recording Support 512GB For Single SD Card Mobile DVR For Bus Truck (512GB) at $0.1336/GB, while Sp Silicon Power's cheapest 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 (128 GB) at $0.1951/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 4ch or Sp Silicon Power cheaper per GB for sd cards?
As of March 2026, 4ch averages $0.1336/GB compared to Sp Silicon Power at $0.4096/GB. 4ch is approximately 67% cheaper per gigabyte on average.
How many 4ch and Sp Silicon Power sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 1 4ch products and 2 Sp Silicon Power products in the sd cards category, all ranked by price per gigabyte.
What is the cheapest 4ch sd card per GB?
The cheapest 4ch option is the 4CH MDVR Loop Recording Support 512GB For Single SD Card Mobile DVR For Bus Truck at $0.1336/GB ($68.42 for 512GB).
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).