Replacement for DPS-550PB-A: Drop-In Alternatives We Stock
Looking for a replacement for the DPS-550PB-A (Delta DPS-550PB A 550-Watts 100-240V Non Hot-pluggable Power Supply for PowerEdge R420 T420)? Pro Disk Network ships Dell 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-550PB-A
| SKU | DPS-550PB-A |
|---|---|
| Product | Delta DPS-550PB A 550-Watts 100-240V Non Hot-pluggable Power Supply for PowerEdge R420 T420 |
| Current price | $950.84 |
| Stock status | In Stock |
| Detail page | View DPS-550PB-A › |
Drop-in replacements for DPS-550PB-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.
Delta DPS-250AB-79 A 250-Watts 100-127V / 200-240V Power Supply for Dell OptiPlex 3010 7010 9010
SKU: DPS-250AB-79-A
Price: $205.26
4XX1H - Dell 550-Watts 100-240V Non Hot Plug Power Supply for PowerEdge R320 R420
SKU: 4XX1H
Price: $202.11
AC550E-S0 - Dell 550-Watts 100-240V Non Hot Plug Power Supply for PowerEdge R320 R420
SKU: AC550E-S0
Price: $307.71
04XX1H - Dell 550-Watts 100-240V Non Hot Plug Power Supply for PowerEdge R320 R420
SKU: 04XX1H
Price: $344.33
96R8Y - Dell 550-Watts 100-240V Non-Hot-pluggable Power Supply for PowerEdge R420 T420
SKU: 96R8Y
Price: $642.43
096R8Y - Dell 550-Watts 100-240V Non-Hot-pluggable Power Supply for PowerEdge R420 T420
SKU: 096R8Y
Price: $642.43
2G4WR - Dell 550-Watts 100-240V 80 Plus Silver Non Hot-pluggable Power Supply for PowerEdge R520 T320 T420
SKU: 2G4WR
Price: $849.24
02G4WR - Dell 550-Watts 100-240V 80 Plus Silver Non Hot-pluggable Power Supply for PowerEdge R520 T320 T420
SKU: 02G4WR
Price: $849.24
DH550E-S1 - Dell 550-Watts 100-240V Non Hot-pluggable Power Supply for PowerEdge R420 T420
SKU: DH550E-S1
Price: $904.13
FSB001-240G2 - Dell 550-Watts 100-240V Non Redundant Power Supply for Dell PowerEdge R320 R520 R420
SKU: FSB001-240G2
Price: $395.34
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.