Replacement for 81Y6657: Drop-In Alternatives We Stock
Looking for a replacement for the 81Y6657 (81Y6657 - IBM Plus 4x 2.5-inch HDD Assembly Kit for X3550 M4)? 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 81Y6657
| SKU | 81Y6657 |
|---|---|
| Product | 81Y6657 - IBM Plus 4x 2.5-inch HDD Assembly Kit for X3550 M4 |
| Current price | $560.25 |
| Stock status | In Stock |
| Detail page | View 81Y6657 › |
Drop-in replacements for 81Y6657
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.
2076-224-C3-06 - IBM Storwize V7000 Disk Expansion Enclosure - 23x 146GB SAS HDD - 1x 300GB SAS HDD - 2x ESM Controller - 2x PSU
SKU: 2076-224-C3-06
Price: $393.95
2076-224-C2-07 - IBM Storwize V7000 Disk Expansion Enclosure - 10x 146GB SAS HDD - 14x 300GB SAS HDD - 2x ESM Controller - 2x PSU
SKU: 2076-224-C2-07
Price: $393.95
69Y5319 - IBM Plus 8 2.5-inch Hot Swap Hard Drive Assembly Kit for x3650 M4
SKU: 69Y5319
Price: $721.05
69Y5034 - IBM Hot-Swappable SAS SATA 8-Pack HDD Enablement Kit with 2 M5015 Adapters for x3650 M3 Server
SKU: 69Y5034
Price: $781.21
69Y5033 - IBM 5720 Hot Swap SAS SATA 8 Pack HDD Enablement Kit for 2 M5015 Adapters
SKU: 69Y5033
Price: $2,030.54
39R8312 - IBM Rail Kit for Bladecenter T Chassic (Type 8720 and 8730) with a 2 post Kit and a 4 post Kit
SKU: 39R8312
Price: $82.42
00KA055 - IBM System x3550 M5 4 X 2.5-inch Hot-Pluggable Hard Drive Kit Plus
SKU: 00KA055
Price: $307.71
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.