4ch vs Agi SD Cards
Side-by-side price per gigabyte comparison across 5 products.
As of March 2026, 4ch averages $0.1336/GB across 1 products while Agi averages $0.2420/GB across 4 products on BuyPerUnit. 4ch offers 45% 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
Agi
Cheapest Product
AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,...512GB · $103.99 · newegg
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 | Agi | AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... | 512GB | $0.2031 | $103.99 | newegg |
| 2 | Agi | AGI 1TB TF138 MicroSD Memory, High-Capacity Storage Suit for Gaming. MicroSDXC A2 U3 V30 4K UHS-I U3 (Read Speed up to 170 MB/s, Write Speed up to... | 1TB | $0.2220 | $221.99 | newegg |
| 3 | Agi | AGI 256GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... | 256GB | $0.2539 | $64.99 | newegg |
| 4 | Agi | AGI 128GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... | 128GB | $0.2890 | $36.99 | newegg |
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 Agi's $0.2420/GB — that's roughly 45% 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 Agi's cheapest option is the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... (512GB) at $0.2031/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 Agi cheaper per GB for sd cards?
As of March 2026, 4ch averages $0.1336/GB compared to Agi at $0.2420/GB. 4ch is approximately 45% cheaper per gigabyte on average.
How many 4ch and Agi sd cards does BuyPerUnit track?
BuyPerUnit currently tracks 1 4ch products and 4 Agi 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 Agi sd card per GB?
The cheapest Agi option is the AGI 512GB TF138 MicroSDXC Memory Card C10 U3 V30 A2 Micro SD (R/W Speed up to 98/70 MBs) SD Card Adapter is accompanied for Using with DSLRs,... at $0.2031/GB ($103.99 for 512GB).