Replacement for 451781-001: Drop-In Alternatives We Stock
Looking for a replacement for the 451781-001 (451781-001 - HP SATA/SAS Backplane Board 4Bay ProLiant ML310 G5)? Pro Disk Network ships HP 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 451781-001
| SKU | 451781-001 |
|---|---|
| Product | 451781-001 - HP SATA/SAS Backplane Board 4Bay ProLiant ML310 G5 |
| Current price | $352.63 |
| Stock status | In Stock |
| Detail page | View 451781-001 › |
Drop-in replacements for 451781-001
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.
823791-001 - HP Express Bay SFF Hard Drive Cage Assembly Includes Backplane Board / Mini-SAS Cable and Backplane Power Cable for ProLiant SE1170s
SKU: 823791-001
Price: $342.11
432926-001 - HP SAS/SATA Backplane Board for ProLiant DL185/DL320 G5 Server
SKU: 432926-001
Price: $71.58
452340-001 - HP SAS/SATA Backplane Board for ProLiant DL320 G5p DL160 G5 Server
SKU: 452340-001
Price: $71.58
412736-001 - HP 8-Bay SFF SAS/SATA Hard Drive Backplane Board for ProLiant DL380 G5 Server
SKU: 412736-001
Price: $71.58
445185-001 - HP SAS/SATA Backplane Board for ProLiant DL320 G5p DL160 G5 Server
SKU: 445185-001
Price: $71.58
775402-001 - HP 4-Bay SAS / SATA Backplane Board for ProLiant DL360 G9 / DL380 G9 Server
SKU: 775402-001
Price: $110.53
775401-001 - HP SAS/SATA Backplane Board for ProLiant DL360 Gen9 G9 SFF
SKU: 775401-001
Price: $128.42
729820-001 - HP SAS / SATA 8SFF Backplane Board for ProLiant DL380 Gen9
SKU: 729820-001
Price: $128.42
507304-001 - HP 12-Bay SAS / SATA Hard Drive Backplane Board for ProLiant DL180 G6 Server
SKU: 507304-001
Price: $170.53
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.