Replacement for 501879-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 501879-B21 (501879-B21 - HP Rack Crossbrace Option Kit)? 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 501879-B21
| SKU | 501879-B21 |
|---|---|
| Product | 501879-B21 - HP Rack Crossbrace Option Kit |
| Current price | $334.74 |
| Stock status | In Stock |
| Detail page | View 501879-B21 › |
Drop-in replacements for 501879-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.
A9862A - HP cc3310 DC option E7501 Intel Xeon 2.4GHz CPU Gigabit Ethernet Rack-Mountable 2U Server
SKU: A9862A
Price: $3,808.42
224952-001 - HP Redundant Hot-Plug Fan Option Kit with Bracket for ProLiant ML370 G2/G3 Server
SKU: 224952-001
Price: $71.58
486206-001 - HP Single Active Cool Fan Option Kit for BLadeCenter BLC7000
SKU: 486206-001
Price: $85.82
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
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.