Replacement for 4N505: Drop-In Alternatives We Stock
Looking for a replacement for the 4N505 (4N505 - Dell 180-Watts ATX Power Supply for Optiplex GX240, GX260, GX270, GX280 Dimension 4500)? 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 4N505
| SKU | 4N505 |
|---|---|
| Product | 4N505 - Dell 180-Watts ATX Power Supply for Optiplex GX240, GX260, GX270, GX280 Dimension 4500 |
| Current price | $461.84 |
| Stock status | In Stock |
| Detail page | View 4N505 › |
Drop-in replacements for 4N505
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.
04N505 - Dell 180-Watts ATX Power Supply for Optiplex GX240, GX260, GX270, GX280 Dimension 4500
SKU: 04N505
Price: $461.84
OP2721 - Dell 160-Watts ATX SFF Power Supply for Dimension 2400C 4600C and OptiPlex GX270 Mini-Tower and OptiPlex GX270 SFF Desktops
SKU: OP2721
Price: $461.84
0P2721 - Dell 160-Watts ATX SFF Power Supply for Dimension 2400C 4600C and OptiPlex GX270 Mini-Tower and OptiPlex GX270 SFF Desktops
SKU: 0P2721
Price: $461.84
P2721 - Dell 160-Watts ATX SFF Power Supply for Dimension 2400C 4600C and OptiPlex GX270 Mini-Tower and OptiPlex GX270 SFF Desktops
SKU: P2721
Price: $461.84
0L230P - Dell 230-Watts ATX Power Supply for Dell Optiplex 210L 320 330 360 GX520 Dimension E310 3100 5150 Desktop Computers
SKU: 0L230P
Price: $126.74
0R8042 - Dell 230-Watts ATX Power Supply For Dell Optiplex 210L/320/330/360/GX520 Dimension E310/3100/5150 Desktop Computers
SKU: 0R8042
Price: $157.07
R8042 - Dell 230-Watts ATX Power Supply For Dell Optiplex 210L/320/330/360/GX520,Dimension E310/3100/5150 Desktop Computers
SKU: R8042
Price: $157.07
HP-Q2228F3P - Dell 220-Watts 100-127V / 200-240V ATX Power Supply for OptiPlex GX520 GX520 GX620 DT 745 755 / Dimension C521
SKU: HP-Q2228F3P
Price: $96.84
MH596 - Dell 280-Watts ATX Power Supply for OptiPlex GX 320, 520, 620, 740, 745, 755 and Dimension C521
SKU: MH596
Price: $96.84
K8965 - Dell 220-Watts 100-240V ATX Power Supply for OptiPlex GX280 GX520 GX620 Dimension C521 3100c
SKU: K8965
Price: $96.84
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.