SanDisk vs Wd_black Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 119 products.
As of March 2026, SanDisk averages $1.3777/GB across 118 products while Wd_black averages $0.1950/GB across 1 products on BuyPerUnit. Wd_black offers 86% better value per gigabyte for hard drives & ssds.
SanDisk
Cheapest Product
SANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black8 TB · $739.99 · bestbuy
Wd_black
Better ValueCheapest Product
WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN2 TB · $389.97 · amazon
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | SanDisk | SANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black | 8 TB | $0.0925 | $739.99 | bestbuy |
| 1 | Wd_black | WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN | 2 TB | $0.1950 | $389.97 | amazon |
| 2 | SanDisk | SANDISK - Extreme Portable 4TB External USB-C NVMe SSD - Black | 4 TB | $0.1125 | $449.99 | bestbuy |
| 3 | SanDisk | SanDisk 4TB Extreme Portable SSD - Up to 1050MB/s, USB-C, USB 3.2 Gen 2, IP65 Water and Dust Resistance, Updated Firmware - External Solid State Drive - SDSSDE61-4T00-G25 | 4 TB | $0.1125 | $449.99 | amazon |
| 4 | SanDisk | SANDISK - 2TB Creator Phone SSD External USB Type C Drive with Magsafe Compatibility for iPhone 15/16 - Blue | 2 TB | $0.1150 | $229.99 | bestbuy |
| 5 | SanDisk | SanDisk 2TB Portable SSD - Up to 800MB/s, USB-C, USB 3.2 Gen 2, Updated Firmware - External Solid State Drive - SDSSDE30-2T00-G26 | 2 TB | $0.1163 | $232.57 | amazon |
Which Should You Buy?
Based on current pricing data, Wd_black offers better overall value for hard drives & ssds at an average of $0.1950/GB compared to SanDisk's $1.3777/GB — that's roughly 86% less per gigabyte.
Wd_black's best deal is the WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN (2 TB) at $0.1950/GB, while SanDisk's cheapest option is the SANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black (8 TB) at $0.0925/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 SanDisk or Wd_black cheaper per GB for hard drives & ssds?
As of March 2026, Wd_black averages $0.1950/GB compared to SanDisk at $1.3777/GB. Wd_black is approximately 86% cheaper per gigabyte on average.
How many SanDisk and Wd_black hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 118 SanDisk products and 1 Wd_black products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest SanDisk hard drives & ssd per GB?
The cheapest SanDisk option is the SANDISK - 8TB Desk Drive USB Type-C Desktop External SSD - Black at $0.0925/GB ($739.99 for 8 TB).
What is the cheapest Wd_black hard drives & ssd per GB?
The cheapest Wd_black option is the WD_BLACK 2TB SN850P NVMe M.2 SSD Officially Licensed Storage Expansion for PS5 Consoles, up to 7,300MB/s, with heatsink - WDBBYV0020BNC-WRSN at $0.1950/GB ($389.97 for 2 TB).