ADATA vs SanDisk Hard Drives (HDD)

Side-by-side price per gigabyte comparison across 16 products.

As of August 2026, ADATA averages $0.0901/GB across 11 products while SanDisk averages $0.1383/GB across 5 products on BuyPerUnit. ADATA offers 35% better value per gigabyte for hard drives (hdd).

ADATA

Better Value

Avg $/GB$0.0901

Best $/GB$0.0472

Price Range$0.0472 – $0.1710

Products11

Cheapest Product

5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black)

5TB · $236.07 · newegg

SanDisk

Avg $/GB$0.1383

Best $/GB$0.0620

Price Range$0.0620 – $0.2336

Products5

Cheapest Product

SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive

22TB · $1364.99 · newegg

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	ADATA	5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black)	5TB	$0.0472	$236.07	newegg
1	SanDisk	SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive	22TB	$0.0620	$1364.99	newegg
2	ADATA	ADATA HD710 Pro - 2 TB External Hard Drive - Shockproof, Waterproof & Dustproof - Durable Storage - For Gamers, Students & Professionals - Mac, PC & Linux Compatible - Black - AHD710P-2TU31-CBK	2 TB	$0.0625	$124.99	amazon
2	SanDisk	SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive	18TB	$0.0681	$1224.99	newegg
3	ADATA	ADATA 2TB HD720 Waterproof / Dustproof / Shockproof External Hard Drive USB 3.0 Model AHD720-2TU3-CBL Blue	2TB	$0.0670	$134.00	newegg
3	SanDisk	SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive	18TB	$0.0681	$1224.99	newegg
4	ADATA	ADATA 4TB HD710P Portable Hard Drive USB 3.1 Model AHD710P-4TU31-CBK Black	4TB	$0.0684	$273.41	newegg
4	SanDisk	SanDisk G-DRIVE ArmorATD 2 TB Portable Rugged Hard Drive SDPH81G002TGBA	2TB	$0.1075	$214.99	newegg
5	ADATA	ADATA 2TB HV320 Portable Hard Drive USB 3.2 Gen1 Model AHV320-2TU31-CBK Black	2TB	$0.0684	$136.90	newegg
5	SanDisk	SanDisk 1TB G-DRIVE ArmorATD 2.5' External USB 3.2 (Gen 1) Type C 130 MB/s Maximum Read Transfer Rate Portable Hard Drive Space Gray	1TB	$0.1950	$194.99	newegg

Which Should You Buy?

Based on current pricing data, ADATA offers better overall value for hard drives (hdd) at an average of $0.0901/GB compared to SanDisk's $0.1383/GB — that's roughly 35% less per gigabyte.

ADATA's best deal is the 5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black) (5TB) at $0.0472/GB, while SanDisk's cheapest option is the SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive (22TB) at $0.0620/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 ADATA or SanDisk cheaper per GB for hard drives (hdd)?

As of August 2026, ADATA averages $0.0901/GB compared to SanDisk at $0.1383/GB. ADATA is approximately 35% cheaper per gigabyte on average.

How many ADATA and SanDisk hard drives (hdd) does BuyPerUnit track?

BuyPerUnit currently tracks 11 ADATA products and 5 SanDisk products in the hard drives (hdd) category, all ranked by price per gigabyte.

What is the cheapest ADATA hard drives (hdd) per GB?

The cheapest ADATA option is the 5TB AData HD710 Pro USB3.1 2.5-inch Portable Hard Drive (Black) at $0.0472/GB ($236.07 for 5TB).

What is the cheapest SanDisk hard drives (hdd) per GB?

The cheapest SanDisk option is the SanDisk Professional 22TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0620/GB ($1364.99 for 22TB).

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