Replacement for SEFY61U: Drop-In Alternatives We Stock
Looking for a replacement for the SEFY61U (SEFY61U - Sun SPARC Enterprise M5000/M4000 Server I/O Unit)? Pro Disk Network ships 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 SEFY61U
| SKU | SEFY61U |
|---|---|
| Product | SEFY61U - Sun SPARC Enterprise M5000/M4000 Server I/O Unit |
| Stock status | In Stock |
| Detail page | View SEFY61U › |
Drop-in replacements for SEFY61U
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.
371-2214 - Sun CPU/Memory Unit (CMU) 0MB for Sun SPARC Enterprise M8000/M9000 RoHS Y
SKU: 371-2214
Price: $408.42
371-2228 - Sun eXtended System Control Facility Unit B XSCF_B for Sun SPARC Enterprise M8000/M9000 RoHS Y
SKU: 371-2228
Price: $3,594.74
341-3559-02 - Sun 1U Power Supply Unit Filler Panel for SPARC Enterprise T5120 Server
SKU: 341-3559-02
Price: $82.57
341-3559 - Sun 1U Power Supply Unit Filler Panel for SPARC Enterprise T5120 Server
SKU: 341-3559
Price: $140.34
541-0891 - Sun I/O & Power Supply Unit Backplane Assembly for SPARC Enterprise M4000
SKU: 541-0891
Price: $128.42
371-2242 - Sun Temperature Sensor Unit for SPARC Enterprise M8000 / M9000
SKU: 371-2242
Price: $189.47
300-1701 - Sun I/O Box Power Supply for External I/O Expansion Unit for SPARC Enterprise M4000 / M5000 / M8000 / M9000
SKU: 300-1701
Price: $326.32
371-4345 - Sun 4GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory Module for Sun SPARC Enterprise M3000 Server
SKU: 371-4345
Price: $71.58
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.