Replacement for PDP-121P: Drop-In Alternatives We Stock
Looking for a replacement for the PDP-121P (PDP-121P - HP 220-Watts ATX Power Supply for Evo D310 510)? Pro Disk Network ships HP 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 PDP-121P
| SKU | PDP-121P |
|---|---|
| Product | PDP-121P - HP 220-Watts ATX Power Supply for Evo D310 510 |
| Current price | $128.95 |
| Stock status | In Stock |
| Detail page | View PDP-121P › |
Drop-in replacements for PDP-121P
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.
PDP-124P - HP 185-Watts 120-240V AC Switching Power Supply with PFC for EVO D530 D325 DC5000
SKU: PDP-124P
Price: $182.37
277910-001 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction for EVO D310 D315 D510 and Vectra VL430
SKU: 277910-001
Price: $96.84
277979-001 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction for EVO D310 D315 D510 and Vectra VL430
SKU: 277979-001
Price: $96.84
0950-4351 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction (PFC) for EVO D310/D315/D510,Vectra VL430
SKU: 0950-4351
Price: $174.43
277918-001 - HP 220-Watts ATX 12V Switching Power Supply with Power Factor Correction for EVO D310 D315 D510 Vectra VL430
SKU: 277918-001
Price: $201.50
279086-001 - HP 220-Watts ATX 12V Switching Power Supply with Active Power Factor Correction for EVO D310 D315 D510 Vectra VL430
SKU: 279086-001
Price: $356.54
249855-001 - HP 50-Watts ATX Power Supply for EVO D500/ 510 Ultra Slim Desktop System
SKU: 249855-001
Price: $82.42
HP-Q220PC3P - HP 220-Watts 100-127V / 200-240V ATX Power Supply for EVO D310 D315 D510 / Vectra VL430
SKU: HP-Q220PC3P
Price: $128.95
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.