Replacement for 251243-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 251243-B21 (251243-B21 - HP Telco Rack Option Kit for ProLiant DL360 G2 Server)? 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 251243-B21
| SKU | 251243-B21 |
|---|---|
| Product | 251243-B21 - HP Telco Rack Option Kit for ProLiant DL360 G2 Server |
| Current price | $184.21 |
| Stock status | In Stock |
| Detail page | View 251243-B21 › |
Drop-in replacements for 251243-B21
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.
266076-B21 - HP Telco Rack-Mounting Hardware Kit for ProLiant BL40p Server
SKU: 266076-B21
Price: $265.26
224952-001 - HP Redundant Hot-Plug Fan Option Kit with Bracket for ProLiant ML370 G2/G3 Server
SKU: 224952-001
Price: $71.58
382157-B21 - HP Wide Ultra2 SCSI Drive Cage Option Kit for ProLiant 3000 Server
SKU: 382157-B21
Price: $110.53
452182-B21 - HP 3-Slot PCI-Express Input/Output Option Kit for ProLiant DL580 G5 Server
SKU: 452182-B21
Price: $131.58
452180-B21 - HP SAS Backplane Expansion Option Kit for ProLiant DL580 G5 Server
SKU: 452180-B21
Price: $131.58
682632-B21 - HP Mezzanine to PCI Express PC Board Option Kit for ProLiant SL4540 Gen8 Server
SKU: 682632-B21
Price: $131.58
514206-B21 - HP Dedicated iLO Management Port Option Kit for ProLiant DL320/ML330 G6 Server
SKU: 514206-B21
Price: $145.26
575498-B21 - HP Dedicated Management Port Option Kit Module for ProLiant DL170h G6 Server
SKU: 575498-B21
Price: $170.53
405154-B21 - HP PCI-X Riser Cage Option Kit for HP ProLiant DL360 G4 Server
SKU: 405154-B21
Price: $182.37
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.