Description
Dell 490W Server Power Supply JY138 / DU643 | PowerEdge T300 (24-Pin + 4-Pin + SATA x2 + FDD x1)
Key Features
- New original Dell 490W server power supply — genuine OEM unit for PowerEdge T300 tower server
- Dell part numbers: JY138 / DU643 — same physical unit, interchangeable DPN
- PSU model numbers: N490P-00 / H490P-00
- Dimensions: 150 × 140 × 86 mm — Dell tower server form factor
- Connector layout: 24-Pin ATX + 4-Pin +12V + 10-Pin PCIe + SATA x2 + FDD x1
- 490W stable output for PowerEdge T300 mid-range tower server workloads
- Wide input range: 100–240V AC, 50–60Hz, 8.5A — compatible with MY/SG 240V supply
- Built-in OVP / OCP / SCP protection
Technical Specifications
| Brand | Dell |
| Condition | New Original (Genuine Dell) |
| Dell PN | JY138 / DU643 |
| PSU Model | N490P-00 / H490P-00 |
| Wattage | 490W MAX |
| Input Voltage | 100–240V AC, 50–60Hz, 8.5A |
| Output | 490W MAX continuous output |
| Form Factor | Dell Tower Server (150 × 140 × 86 mm) — Non-Hot-Swap (Fixed) |
| Connector Type | 24-Pin ATX + 4-Pin +12V + 10-Pin PCIe + SATA x2 + FDD x1 |
| Hot Plug | No |
| Protection | OVP / OCP / SCP |
Compatible Models
Dell PowerEdge Server Series:
- Dell PowerEdge T300
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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 490W Server PSU JY138 DU643 PowerEdge T300 (New Original or identical DPN)
Warranty
- 3-month replacement warranty
- Covers manufacturing defects; physical damage and improper installation not included
Additional Notes
- Non-Hot-Swap fixed PSU — server must be powered off before replacement.
- Includes 10-Pin PCIe connector for GPU support in the T300 chassis.
- Verify Dell DP/N on existing PSU label matches JY138 or DU643 before ordering.
- New original unit — genuine factory Dell unit, not refurbished or aftermarket.



