Replacement for 857648-S21: Drop-In Alternatives We Stock
Looking for a replacement for the 857648-S21 (857648-S21 - HP 10TB 7200RPM SATA 6Gb/s 3.5-inch Hard Drive)? 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 857648-S21
| SKU | 857648-S21 |
|---|---|
| Product | 857648-S21 - HP 10TB 7200RPM SATA 6Gb/s 3.5-inch Hard Drive |
| Stock status | In Stock |
| Detail page | View 857648-S21 › |
Drop-in replacements for 857648-S21
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.
857648-B21 - HP 10TB 7200RPM SATA 6Gb/s SC Midline Hot-Swappable 3.5-inch Hard Drive
SKU: 857648-B21
Price: $500.00
857967-001 HP 10TB 7200RPM SATA 6Gb/s Hot-Swappable 3.5-inch Hard Drive
SKU: 857967-001
Price: $500.00
857650-B21 HP 10TB 7200RPM SATA 6Gb/s Hot-Swappable 3.5-inch Hard Drive
SKU: 857650-B21
Price: $549.47
857968-001 - HP 10TB 7200RPM SATA 6Gb/s Midline Hot-Swappable 3.5-inch Hard Drive
SKU: 857968-001
Price: $549.47
857643-002 - HP 10TB 7200RPM SATA 6Gb/s 512e Hot-Swappable 3.5-inch Hard Drive
SKU: 857643-002
Price: $549.47
WD100EFAX-68LHPN0 - Western Digital 10TB 5400RPM SATA 6Gb/s 256MB Cache 3.5-inch Hard Drive
SKU: WD100EFAX-68LHPN0
Price: $571.68
QK770A - HP D2700 Das Array 10 X 1TB 10TB Installed Hard Drive Capacity Serial Attached SCSI SAS Controller 25 X Total Bays 6GB/s SAS 2u Rack-mountable
SKU: QK770A
Price: $4,824.09
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.