ADATA vs Western Digital Hard Drives & SSDs

Side-by-side price per gigabyte comparison across 101 products.

As of March 2026, ADATA averages $0.2355/GB across 4 products while Western Digital averages $0.1178/GB across 97 products on BuyPerUnit. Western Digital offers 50% better value per gigabyte for hard drives & ssds.

ADATA

Avg $/GB$0.2355

Best $/GB$0.1150

Price Range$0.1150 – $0.4653

Products4

Cheapest Product

ADATA Ultimate SU650 Solid State Drive - 1TB Internal SSD - 2.5" SATA 6Gb/s - PC Upgrade - High-Speed, Secure Data Storage - Advanced Error Correction - Desktop Compatible - ASU650SS-1TT-R

1 TB · $115.00 · amazon

Western Digital

Better Value

Avg $/GB$0.1178

Best $/GB$0.0217

Price Range$0.0217 – $1.1990

Products97

Cheapest Product

WD - easystore 18TB External USB 3.0 Hard Drive - Black

18 TB · $389.99 · bestbuy

Top Products Compared

Rank	Brand	Product	Capacity	$/GB	Price	Retailer
1	ADATA	ADATA Ultimate SU650 Solid State Drive - 1TB Internal SSD - 2.5" SATA 6Gb/s - PC Upgrade - High-Speed, Secure Data Storage - Advanced Error Correction - Desktop Compatible - ASU650SS-1TT-R	1 TB	$0.1150	$115.00	amazon
1	Western Digital	WD - easystore 18TB External USB 3.0 Hard Drive - Black	18 TB	$0.0217	$389.99	bestbuy
2	ADATA	ADATA SU650 512GB 3D-NAND SATA 2.5 inch Internal SSD (ASU650SS-512GT-R)	512GB	$0.1738	$88.99	newegg
2	Western Digital	WD - easystore 20TB External USB 3.0 Hard Drive - Black	20 TB	$0.0220	$439.99	bestbuy
3	ADATA	ADATA SC735 External SSD - 2TB USB 3.2 Gen2 Portable Solid State Drive for Gaming & High Speed Data Transfer - Up to 1050/1000MB/s - MIL-STD Drop Resistant - Black/Grey - 1 Count	2 TB	$0.1881	$376.12	amazon
3	Western Digital	WD 16TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0160HBK-NESN	16 TB	$0.0225	$360.49	amazon
4	ADATA	256GB AData Premier Extreme SD Express Card SDXC PCIe Gen3 UHS-I U3 SD7.0	256GB	$0.4653	$119.11	newegg
4	Western Digital	WD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESN	18 TB	$0.0233	$419.99	amazon
5	Western Digital	Western Digital 10TB WD Blue Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD100EAGZ	10 TB	$0.0240	$239.99	amazon

Which Should You Buy?

Based on current pricing data, Western Digital offers better overall value for hard drives & ssds at an average of $0.1178/GB compared to ADATA's $0.2355/GB — that's roughly 50% less per gigabyte.

Western Digital's best deal is the WD - easystore 18TB External USB 3.0 Hard Drive - Black (18 TB) at $0.0217/GB, while ADATA's cheapest option is the ADATA Ultimate SU650 Solid State Drive - 1TB Internal SSD - 2.5" SATA 6Gb/s - PC Upgrade - High-Speed, Secure Data Storage - Advanced Error Correction - Desktop Compatible - ASU650SS-1TT-R (1 TB) at $0.1150/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 Western Digital cheaper per GB for hard drives & ssds?

As of March 2026, Western Digital averages $0.1178/GB compared to ADATA at $0.2355/GB. Western Digital is approximately 50% cheaper per gigabyte on average.

How many ADATA and Western Digital hard drives & ssds does BuyPerUnit track?

BuyPerUnit currently tracks 4 ADATA products and 97 Western Digital products in the hard drives & ssds category, all ranked by price per gigabyte.

What is the cheapest ADATA hard drives & ssd per GB?

The cheapest ADATA option is the ADATA Ultimate SU650 Solid State Drive - 1TB Internal SSD - 2.5" SATA 6Gb/s - PC Upgrade - High-Speed, Secure Data Storage - Advanced Error Correction - Desktop Compatible - ASU650SS-1TT-R at $0.1150/GB ($115.00 for 1 TB).

What is the cheapest Western Digital hard drives & ssd per GB?

The cheapest Western Digital option is the WD - easystore 18TB External USB 3.0 Hard Drive - Black at $0.0217/GB ($389.99 for 18 TB).

Explore More

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