Replacement for J9581A: Drop-In Alternatives We Stock
Looking for a replacement for the J9581A (J9581A - HP 400-Watts 100-240VAC 12 V DC Switching Power Supply for E3800 Switch Series)? 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 J9581A
| SKU | J9581A |
|---|---|
| Product | J9581A - HP 400-Watts 100-240VAC 12 V DC Switching Power Supply for E3800 Switch Series |
| Current price | $170.53 |
| Stock status | In Stock |
| Detail page | View J9581A › |
Drop-in replacements for J9581A
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.
J9581-61001 - HP 400-Watts 100-240V AC 12V DC Switching Power Supply for Network Switch
SKU: J9581-61001
Price: $170.53
HP J9581A#ABA 400-Watts 100-240VAC 12 V DC Switching Power Supply for E3800 Switch Series
SKU: J9581A-ABA
Price: $189.47
277919-001 - HP 220-Watts ATX 12V Switching Power Supply with Active Power Supply Correction for Presario 6000
SKU: 277919-001
Price: $96.84
656364-B21 - HP 1200-Watts 100-240V AC Common Slot High Efficiency Platinum Plus Hot-Pluggable Switching Power Supply for ProLiant DL380P/DL385 Gen8
SKU: 656364-B21
Price: $128.42
660185-001 - HP 1200-Watts 100-240V AC Common Slot High Efficiency Platinum Plus Hot-Pluggable Switching Power Supply (RPS) for ProLiant DL380P/DL385 Gen8
SKU: 660185-001
Price: $128.42
HSTNS-PR01 - HP 1000 -Watts 100-120V Redundant Hot-Pluggable Switching Power Supply for ProLiant ML350 ML370 DL380 G5 DL385 G2
SKU: HSTNS-PR01
Price: $195.79
397124-001 - HP 185-Watts 120-240V AC Switching Power Supply with Power Factor Correction for EVO D530 D325 DC5000 WorkStation
SKU: 397124-001
Price: $73.68
277978-001 - HP 220-Watts ATX 12V Switching Power Supply with Active Power Factor Correction for Presario 6000
SKU: 277978-001
Price: $96.84
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
751884-001 - HP 240-Watts 12V DC Switching Power Supply with Active Power Factor Correction for ProDesk 600 System
SKU: 751884-001
Price: $147.37
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.