External vs Western Digital Hard Drives & SSDs
Side-by-side price per gigabyte comparison across 100 products.
As of March 2026, External averages $0.0281/GB across 1 products while Western Digital averages $0.1158/GB across 99 products on BuyPerUnit. External offers 76% better value per gigabyte for hard drives & ssds.
External
Better ValueCheapest Product
External Hard Drive Conversion Box For Series X/S Host M.2 Hard Drive Expansion Card Box For CHSN530 1TB Hard Disk-N33R1TB · $28.11 · newegg
Western Digital
Top Products Compared
| Rank | Brand | Product | Capacity | $/GB | Price | Retailer |
|---|---|---|---|---|---|---|
| 1 | External | External Hard Drive Conversion Box For Series X/S Host M.2 Hard Drive Expansion Card Box For CHSN530 1TB Hard Disk-N33R | 1TB | $0.0281 | $28.11 | newegg |
| 1 | Western Digital | WD - easystore 18TB External USB 3.0 Hard Drive - Black | 18 TB | $0.0217 | $389.99 | bestbuy |
| 2 | Western Digital | WD - easystore 20TB External USB 3.0 Hard Drive - Black | 20 TB | $0.0220 | $439.99 | bestbuy |
| 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 | 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, External offers better overall value for hard drives & ssds at an average of $0.0281/GB compared to Western Digital's $0.1158/GB — that's roughly 76% less per gigabyte.
External's best deal is the External Hard Drive Conversion Box For Series X/S Host M.2 Hard Drive Expansion Card Box For CHSN530 1TB Hard Disk-N33R (1TB) at $0.0281/GB, while Western Digital's cheapest option is the WD - easystore 18TB External USB 3.0 Hard Drive - Black (18 TB) at $0.0217/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 External or Western Digital cheaper per GB for hard drives & ssds?
As of March 2026, External averages $0.0281/GB compared to Western Digital at $0.1158/GB. External is approximately 76% cheaper per gigabyte on average.
How many External and Western Digital hard drives & ssds does BuyPerUnit track?
BuyPerUnit currently tracks 1 External products and 99 Western Digital products in the hard drives & ssds category, all ranked by price per gigabyte.
What is the cheapest External hard drives & ssd per GB?
The cheapest External option is the External Hard Drive Conversion Box For Series X/S Host M.2 Hard Drive Expansion Card Box For CHSN530 1TB Hard Disk-N33R at $0.0281/GB ($28.11 for 1TB).
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).