Alternative to WD6003FZBX: Better-Value Equivalents in Stock
Comparing the WD6003FZBX (WD6003FZBX - Western Digital WD BLACK 6TB 7200RPM SATA 6Gb/s 256MB 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 WD6003FZBX
| SKU | WD6003FZBX |
|---|---|
| Product | WD6003FZBX - Western Digital WD BLACK 6TB 7200RPM SATA 6Gb/s 256MB cache 3.5-inch Hard Drive |
| Current price | $273.68 |
| Stock status | In Stock |
| Detail page | View WD6003FZBX › |
Alternatives to WD6003FZBX
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.
Western WD4006FZBX Western Digital WD4006FZBX Black 4TB 7200RPM 6Gb/s SATA 256MB Cache 3.5-Inch Hard Drive
SKU: WD4006FZBX
Price: $366.32
WD6002FZWX - Western Digital Black 6TB 7200RPM SATA 6Gb/s 128MB Cache 3.5-inch Hard Drive
SKU: WD6002FZWX
Price: $291.79
WD6001FZWX - Western Digital Black 6TB 7200RPM SATA 6Gb/s 128MB Cache 3.5-inch Hard Drive
SKU: WD6001FZWX
Price: $344.33
WD6004FZWX - Western Digital Black 6TB SATA 6Gb/s 7200RPM 128MB Cache 3.5-inch Gaming Hard Drive
SKU: WD6004FZWX
Price: $553.39
WD6001FZWX-00ZHUA0 - Western Digital Black 6TB 7200RPM SATA 6Gb/s 128MB Cache 3.5-inch Hard Drive
SKU: WD6001FZWX-00ZHUA0
Price: $750.25
Western WD64PURZ Western Digital WD64PURZ Purple 6TB 5400RPM 6Gb/s SATA 256MB Cache 3.5-Inch Hard Drive
SKU: WD64PURZ
Price: $284.21
Western WD60EFPX Western Digital WD60EFPX Red Plus 6TB 5400RPM 6Gb/s SATA 256MB Cache 3.5-Inch Hard Drive
SKU: WD60EFPX
Price: $517.89
WD4005FZBX - Western Digital Black 4TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: WD4005FZBX
Price: $437.20
WD101FZBX - Western Digital Black 10TB SATA 6Gb/s 7200RPM 256MB Cache 3.5-inch Gaming Hard Drive
SKU: WD101FZBX
Price: $791.83
Western WD102FZBX Western Digital WD102FZBX Black 10TB 7200RPM 6Gb/s SATA 512MB Cache 3.5-Inch Hard Drive
SKU: WD102FZBX
Price: $517.89
WD6003FRYZ - Western Digital Gold Enterprise Class 6TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Internal Hard Drive
SKU: WD6003FRYZ
Price: $567.12
WD6003FFBX - Western Digital Red Pro 6TB 7200RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: WD6003FFBX
Price: $584.21
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.