Description
Dell 550W Server Power Supply M95X4 | PowerEdge R320 / R420 (Hot-Swap / Redundant)
Key Features
- New original Dell 550W hot-swap server power supply for PowerEdge R320 and R420 rack servers
- Dell part numbers: M95X4
- PSU model numbers: L550E-S0
- Hot-plug / hot-swap capable — PSU can be replaced without server downtime
- Redundant N+1 dual-PSU configuration supported
- 550W stable output for PowerEdge R320 / R420 rack server workloads
- Wide input range: 100–240V AC, 50–60Hz — compatible with MY/SG 240V supply
- Built-in OVP / OCP / SCP protection
Technical Specifications
| Brand | Dell |
| Condition | New Original (Genuine Dell) |
| Dell PN | M95X4 |
| PSU Model | L550E-S0 |
| Wattage | 550W MAX |
| Input Voltage | 100–240V AC, 50–60Hz |
| Output | 550W MAX continuous output |
| Form Factor | Hot-Swap Server PSU (1U/2U Rack) |
| Connector Type | Server Backplane Connector (Hot-Plug) |
| Hot Plug | Yes — Hot-Swap / Hot-Plug Supported |
| Redundancy | N+1 Redundant PSU Support |
| Protection | OVP / OCP / SCP |
Compatible Models
Dell PowerEdge Server Series:
- Dell PowerEdge R320
- Dell PowerEdge R420
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Disclaimer
Always verify the part number / model number on your existing PSU label before purchasing.
If you are unsure which model is suitable, chat with the NJ Bravo team before ordering. We will help you check the part number, connector, and compatibility.
Package Contents
- 1× Dell 550W Server PSU M95X4 PowerEdge R320 R420 (New Original or identical DPN)
Warranty
- 3-month replacement warranty
- Covers manufacturing defects; physical damage and improper installation not included
Additional Notes
- Hot-swap server PSU — can be swapped while server is running (when redundant PSU is active).
- Enterprise rack server use only — not compatible with desktop or workstation chassis.
- Verify Dell DP/N on existing PSU label matches M95X4 before ordering.
- New original unit — genuine factory Dell unit, not refurbished or aftermarket.
