Replacement for 21H7771: Drop-In Alternatives We Stock
Looking for a replacement for the 21H7771 (21H7771 - IBM 8.58GB 7200RPM SCSI 3.5-inch Hard Drive with Tray)? Pro Disk Network ships IBM 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 21H7771
| SKU | 21H7771 |
|---|---|
| Product | 21H7771 - IBM 8.58GB 7200RPM SCSI 3.5-inch Hard Drive with Tray |
| Current price | $176.43 |
| Stock status | In Stock |
| Detail page | View 21H7771 › |
Drop-in replacements for 21H7771
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.
40K1060 - IBM 146.8GB 15000RPM 80-Pin Hot Swapable Ultra-320 SCSI 3.5-inch SCSI Hard Drive with Tray
SKU: 40K1060
Price: $139.46
25L2143 - IBM 9.1GB 7200RPM Ultra-2 SCSI Hot Pluggable 3.5-inch Hard Drive with Tray
SKU: 25L2143
Price: $250.53
02K0441 - IBM 36.4GB 7200RPM 80-Pin Wide Ultra- SCSI Hot Pluggable 3.5-inch Hard Drive with Tray
SKU: 02K0441
Price: $344.33
08L8421 - IBM 36.4GB 7200RPM 80-Pin Ultra-2 SCSI 3.5-inch Hard Drive with Tray
SKU: 08L8421
Price: $344.33
06H8631 - IBM Hot-pluggable 3.5-inch SCSI Hard Drive Tray for IBM PC Server
SKU: 06H8631
Price: $71.58
00Y2434 - IBM 1TB 7200RPM 2.5-inch SFF NL SAS 6GB/s Hard Drive with Tray for IBM STORWIZE V3500 and V3700
SKU: 00Y2434
Price: $78.95
59Y1810 - IBM 2TB 7200RPM SATA 3GB/s 3.5-inch Dual Port Hot Swapable Hard Drive with Tray for IBM xSeries Storage
SKU: 59Y1810
Price: $371.61
42D0786 IBM 2TB 7200RPM SATA Hot-Swappable 3.5-inch Hard Drive with Tray for IBM xSeries Storage
SKU: 42D0786
Price: $392.99
42D0782 - IBM 2TB 7200RPM SATA 3.5-inch Hot Swapable Hard Drive with Tray for IBM xSeries Storage
SKU: 42D0782
Price: $426.32
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.