Replacement for DPS-550AB-5-A: Drop-In Alternatives We Stock
Looking for a replacement for the DPS-550AB-5-A (Delta DPS-550AB-5 A 550-Watts Power Supply for ThinkServer RD550 / RD650)? 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 DPS-550AB-5-A
| SKU | DPS-550AB-5-A |
|---|---|
| Product | Delta DPS-550AB-5 A 550-Watts Power Supply for ThinkServer RD550 / RD650 |
| Stock status | In Stock |
| Detail page | View DPS-550AB-5-A › |
Drop-in replacements for DPS-550AB-5-A
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.
0A89427 - IBM Lenovo 550-Watts Redundant Hot-Swappable Power Supply for ThinkServer RD330/ RD430
SKU: 0A89427
Price: $284.28
DPS-750AB-14-A - Delta Electronics / IBM 750-Watts AC Power Supply for System x3300 M4 / x3550
SKU: DPS-750AB-14-A
Price: $259.50
94Y8138 - IBM 550-Watts High Efficiency 80 Plus Platinum Hot-Swappable Power Supply For IBM X3550/X3630/X3650s
SKU: 94Y8138
Price: $405.26
03X3822 - IBM Lenovo 800-Watts Redundant Hot Swap Power Supply for ThinkServer RD330
SKU: 03X3822
Price: $233.68
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.