Alternative to WD4000AAKB-00UKA0: Better-Value Equivalents in Stock
Comparing the WD4000AAKB-00UKA0 (WD4000AAKB-00UKA0 - Western Digital Caviar SE16 400GB 7200RPM ATA-100 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 WD4000AAKB-00UKA0
| SKU | WD4000AAKB-00UKA0 |
|---|---|
| Product | WD4000AAKB-00UKA0 - Western Digital Caviar SE16 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive |
| Current price | $471.32 |
| Stock status | In Stock |
| Detail page | View WD4000AAKB-00UKA0 › |
Alternatives to WD4000AAKB-00UKA0
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.
WD4000AAKB-00YSA0 - Western Digital Caviar SE-16 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD4000AAKB-00YSA0
Price: $450.20
WD4000AAKB-22UKA0 - Western Digital Caviar SE-16 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD4000AAKB-22UKA0
Price: $500.37
WD4000AAKB - Western Digital Caviar SE16 400GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD4000AAKB
Price: $523.66
WD2500-ATA - Western Digital Caviar Blue 250GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD2500-ATA
Price: $202.28
WD4000AAJB - Western Digital Caviar SE 400GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive
SKU: WD4000AAJB
Price: $305.05
WD4000AAJB-00UHA0 - Western Digital Caviar SE 400GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive
SKU: WD4000AAJB-00UHA0
Price: $331.58
WD4000JB - Western Digital Caviar Blue 400GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive
SKU: WD4000JB
Price: $333.89
WD4000AAJB-00YRA0 - Western Digital Caviar SE 400GB 7200RPM ATA-100 8MB Cache 3.5-inch Hard Drive
SKU: WD4000AAJB-00YRA0
Price: $431.53
WD3200AAKB - Western Digital Caviar SE16 320GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD3200AAKB
Price: $304.11
WD5000AAKB-00UKA0 - Western Digital Caviar Blue SE16 500GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD5000AAKB-00UKA0
Price: $342.18
WD5000AAKB - Western Digital Caviar Blue SE16 500GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD5000AAKB
Price: $347.50
WD5000AAKB-00YSA0 - Western Digital Caviar Blue SE16 500GB 7200RPM ATA-100 16MB Cache 3.5-inch Hard Drive
SKU: WD5000AAKB-00YSA0
Price: $382.59
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.