Alternative to WD6400AAKS-00A7B0: Better-Value Equivalents in Stock
Comparing the WD6400AAKS-00A7B0 (WD6400AAKS-00A7B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB 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 WD6400AAKS-00A7B0
| SKU | WD6400AAKS-00A7B0 |
|---|---|
| Product | WD6400AAKS-00A7B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive |
| Current price | $223.05 |
| Stock status | In Stock |
| Detail page | View WD6400AAKS-00A7B0 › |
Alternatives to WD6400AAKS-00A7B0
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.
WD6400AAKS - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS
Price: $110.53
WD6400AAKS-22A7B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-22A7B0
Price: $110.53
WD6400AAKS-41H2B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-41H2B0
Price: $157.07
WD6400AAKS-75A7B2 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-75A7B2
Price: $171.03
WD6400AAKS-75A7B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-75A7B0
Price: $182.37
WD6400AAKS-65A7B2 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-65A7B2
Price: $195.79
WD6400AAKS-40H2B1 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-40H2B1
Price: $211.00
WD6400AAKS-65Z7B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-65Z7B0
Price: $211.00
WD6400AAKS-22A7B2 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-22A7B2
Price: $259.37
WD6400AAKS-40H2B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-40H2B0
Price: $259.50
WD6400AAKS-65A7B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-65A7B0
Price: $259.50
WD6400AAKS-00H2B0 - Western Digital Caviar Blue 640GB 7200RPM SATA 3Gb/s 16MB Cache 3.5-inch Hard Drive
SKU: WD6400AAKS-00H2B0
Price: $290.66
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.