Alternative to WD6402AAEX: Better-Value Equivalents in Stock
Comparing the WD6402AAEX (WD6402AAEX - Western Digital Caviar Black 640GB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive) against alternatives? Pro Disk Network stocks 12 similar Western Digital parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the WD6402AAEX
| SKU | WD6402AAEX |
|---|---|
| Product | WD6402AAEX - Western Digital Caviar Black 640GB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive |
| Current price | $205.26 |
| Stock status | In Stock |
| Detail page | View WD6402AAEX › |
Alternatives to WD6402AAEX
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
WD6402AAEX-00Z3A0 - Western Digital Caviar Black 640GB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive
SKU: WD6402AAEX-00Z3A0
Price: $451.93
WD6402AAEX-00Y9A0 - Western Digital Caviar Black 640GB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive
SKU: WD6402AAEX-00Y9A0
Price: $583.12
WD6401AALS - Western Digital Caviar Black 640GB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS
Price: $189.47
WD6401AALS-00E8B0 - Western Digital Caviar Black 640GB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS-00E8B0
Price: $256.42
WD6401AALS-00E3AO - Western Digital Caviar Black 640GB 7200RPM SATA 3GB/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS-00E3AO
Price: $273.12
WD6401AALS-00L3B2 - Western Digital Caviar Black 640GB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS-00L3B2
Price: $297.09
WD6401AALS-00J7B0 - Western Digital Caviar Black 640GB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS-00J7B0
Price: $346.88
WD6401AALS-00E3A0 - Western Digital Caviar Black 640GB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS-00E3A0
Price: $359.63
WD6401AALS-00J7B1 - Western Digital Caviar Black 640GB 7200RPM SATA 3Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD6401AALS-00J7B1
Price: $380.04
WD5002AALX-00J37A0 - Western Digital Caviar Black 500GB 7200RPM SATA 6Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD5002AALX-00J37A0
Price: $110.53
WD5002AALX - Western Digital Caviar Black 500GB 7200RPM SATA 6Gb/s 32MB Cache 3.5-inch Hard Drive
SKU: WD5002AALX
Price: $110.53
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.