450-AJQS: Dell 495W Platinum Hot-Plug Redundant Power Supply (Common Slot)
Also listed as: 023Y5D, 23Y5D, D495E-S0, DPS-495AB · made by Delta Electronics
The Dell 450-AJQS is a Dell 495W Platinum Hot-Plug Redundant Power Supply (Common Slot) delivering high-efficiency hot-plug electrical power to Dell PowerEdge R740, R640, R540, R440 servers.
Specifications
| Part number | 450-AJQS |
|---|---|
| Brand | Dell |
| Made by | Delta Electronics |
| Type | Power supplies |
| Other numbers | 023Y5D, 23Y5D, D495E-S0, DPS-495AB |
| Status | current |
| Interface | Dell Common Slot hot-plug backplane connector |
| Form factor | Hot-Plug 1U Redundant PSU |
| Tdp (W) | 495 |
| Speed | 50/60 Hz |
| Efficiency | 80 PLUS Platinum (94% efficiency at 50% load) |
| Input voltage | 100-240V AC auto-ranging |
About the 450-AJQS
The Dell 450-AJQS is a Dell 495W Platinum Hot-Plug Redundant Power Supply (Common Slot) engineered to deliver clean, redundant electrical power to Dell PowerEdge servers. Operating at high electrical efficiency with 80 PLUS certification, the 450-AJQS converts AC line input into regulated 12V server rail power while minimizing heat dissipation. In Dell's infrastructure catalog, 450-AJQS supports redundant power configurations for continuous server uptime.
Compatibility
Designed for Dell PowerEdge enterprise servers including R740, R640, R540, R440, the 450-AJQS slides into rear hot-plug power supply bays. The 450-AJQS operates in 1+1 redundant or 2+0 combined modes when paired with a matching power supply of identical wattage. Input voltage compatibility for the 450-AJQS covers standard data center electrical distributions.
How to identify a genuine unit
Genuine Dell 450-AJQS power supplies feature a silver label displaying DP/N 023Y5D, input/output voltage and current ratings, 80 PLUS efficiency badges, and Dell regulatory approvals. In iDRAC under Power Monitoring, the 450-AJQS reports real-time wattage draw, input voltage, and thermal status.
Buying used
When evaluating a pre-owned 450-AJQS, inspect the rear blind-mate connector fingers for arcing marks, burns, or physical wear. Confirm that the internal cooling fan on the 450-AJQS spins freely without bearing rattle and that the locking release latch snaps securely into chassis bays. Verify in iDRAC that the 450-AJQS reports normal power sharing without input alerts.
Fits these models
Equivalent part numbers
- Dell 23Y5D Dell direct spare part number for 495W Platinum PSU
FAQ
Can the 495W PSU handle dual high-core Xeon Gold CPUs?
It depends on CPU TDP and storage configuration, but Dell's power planning tool typically recommends 750W or higher for high-TDP dual-socket setups.
Does this unit fit Dell 13G servers like the R730?
Yes, Dell Common Slot PSUs share physical dimensions with 13G, though firmware and model certification align with 14G.
Buying or selling 450-AJQS?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell 495W Hot-Plug Power Supply Specifications, checked 2026-10-27