Replacement for WD40PURZ: Drop-In Alternatives We Stock
Looking for a replacement for the WD40PURZ (WD40PURZ - Western Digital Purple 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance 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 WD40PURZ
| SKU | WD40PURZ |
|---|---|
| Product | WD40PURZ - Western Digital Purple 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive |
| Current price | $221.05 |
| Stock status | In Stock |
| Detail page | View WD40PURZ › |
Drop-in replacements for WD40PURZ
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.
WD40PURX - Western Digital Purple 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD40PURX
Price: $294.74
WD40PURX-64GVNY0 - Western Digital Purple 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD40PURX-64GVNY0
Price: $468.95
WDBGKN0040HNC - Western Digital Purple 4TB 5400RPM SATA 6GB/s 64MB Cache 3.5-inch Hard Drive
SKU: WDBGKN0040HNC
Price: $502.26
WD0740PURX - Western Digital Purple 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive
SKU: WD0740PURX
Price: $551.95
WD40PURZ-85TTDY0 - Western Digital Purple 4TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD40PURZ-85TTDY0
Price: $722.55
WD4NPURX - Western Digital Purple Nv 4TB Intelllipower SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD4NPURX
Price: $357.09
WD05PURZ - Western Digital Purple 500GB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD05PURZ
Price: $143.39
WD30PURX - Western Digital Purple 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD30PURX
Price: $144.74
WD30PURZ - Western Digital Purple 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD30PURZ
Price: $144.74
WD20PURX - Western Digital Purple 2TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD20PURX
Price: $170.53
WD05PURZ-85U8XY0 - Western Digital Purple 500GB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD05PURZ-85U8XY0
Price: $182.37
WD30PURX-64P6ZY0 - Western Digital Purple 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Surveillance Hard Drive
SKU: WD30PURX-64P6ZY0
Price: $189.47
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.