Replacement for 515938-B21: Drop-In Alternatives We Stock
Looking for a replacement for the 515938-B21 (515938-B21 - HP 8-Slot SFF Hot-Pluggable Cage with Backplane for ProLiant DL160 G6)? 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 515938-B21
| SKU | 515938-B21 |
|---|---|
| Product | 515938-B21 - HP 8-Slot SFF Hot-Pluggable Cage with Backplane for ProLiant DL160 G6 |
| Current price | $110.53 |
| Stock status | In Stock |
| Detail page | View 515938-B21 › |
Drop-in replacements for 515938-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.
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
777282-001 - HP PCI Riser Cage Assembly includes Metal Cage Assembly with 2-Slot Primary Optional PCI Riser Board for ProLiant DL388 Gen9 Server
SKU: 777282-001
Price: $212.63
263035-001 - HP Hot-pluggable Hard Drive Cage with SCSI Backplane Board for ProLiant Servers
SKU: 263035-001
Price: $71.58
359719-001 - HP SCSI 6x1 Hot-Pluggable Drive Cage with Backplane Board for ProLiant Server
SKU: 359719-001
Price: $138.95
874568-B21 - HP 8SFF Hot-Pluggable Drive Backplane Cage Kit for ProLiant ML350 G10 Server
SKU: 874568-B21
Price: $273.68
384756-001 - HP 4-Slot Hot Pluggable Drive Cage for ProLiant ML310 G2 Server
SKU: 384756-001
Price: $629.47
875558-001 - HP SFF Rear Hard Drive Backplane Cage with Cables for ProLiant DL360 Gen10 Server
SKU: 875558-001
Price: $147.37
687961-001 - HP 25-Bay SFF Drive Cage Assembly with Backplane for ProLiant DL380e G8 Server
SKU: 687961-001
Price: $155.79
389056-001 - HP 8 x SFF Disk Drive Cage with Backplane for ProLiant ML370 G5
SKU: 389056-001
Price: $160.00
667868-001 - HP 8x SFF 1U Drive Cage with Backplane ProLiant DL360p G8 Server
SKU: 667868-001
Price: $233.68
739405-B21 - HP Hard Drive Backplane Kit/Cage for ProLiant DL580 Gen8 5-Sff
SKU: 739405-B21
Price: $240.00
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.