Alternative to 515938-B21: Better-Value Equivalents in Stock
Comparing the 515938-B21 (515938-B21 - HP 8-Slot SFF Hot-Pluggable Cage with Backplane for ProLiant DL160 G6) against alternatives? Pro Disk Network stocks 12 similar HP parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
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 › |
Alternatives to 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 alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.