Replacement for WD6402AAEX: Drop-In Alternatives We Stock
Looking for a replacement for the WD6402AAEX (WD6402AAEX - Western Digital Caviar Black 640GB 7200RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive)? Pro Disk Network ships Western Digital drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
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 › |
Drop-in replacements for 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 replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.