Replacement for 656363-S21: Drop-In Alternatives We Stock
Looking for a replacement for the 656363-S21 (656363-S21 - HPE 750-Watts Platinum Plus Power Supply)? 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 656363-S21
| SKU | 656363-S21 |
|---|---|
| Product | 656363-S21 - HPE 750-Watts Platinum Plus Power Supply |
| Stock status | In Stock |
| Detail page | View 656363-S21 › |
Drop-in replacements for 656363-S21
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.
656363-B21 - HP 750-Watts 110-220V AC Hot-Pluggable (94%) Platinum Power Supply For Ml350/Dl380/Dl388p G8
SKU: 656363-B21
Price: $128.42
593831-B21 - HP 750-Watts 100V-240V AC 80 Plus Platinum Common Slot Platinum Hot-Pluggable Power Supply for ProLiant DL360/DL380 SL170z G6
SKU: 593831-B21
Price: $138.95
DPS-750AB-3 - HP 750-Watts 200-277V AC 80 Plus Platinum Redundant Hot-Pluggable Power Supply for Poweredge 2950
SKU: DPS-750AB-3
Price: $121.05
660183-001 - HP 750-Watts 100V-240V AC Hot-Pluggable (94%) 80 Plus Platinum Power Supply for ProLiant DL380P/DL385 Gen8
SKU: 660183-001
Price: $128.42
666375-101 - HP 750-Watts 200-277V AC Hot-Pluggable Efficiency 94% Platinum Plus Power Supply for Gen 8
SKU: 666375-101
Price: $194.74
674275-B21 - HP 750-Watts 200V-277V AC Platinum Plus Power Supply for Gen 8
SKU: 674275-B21
Price: $194.74
DPS-750AB-4-A - HP 750-Watts 200-277V AC 80 Plus Platinum Redundant Hot-Pluggable Power Supply for Poweredge 2950
SKU: DPS-750AB-4-A
Price: $205.26
DPS-750AB-3-A - HP 750-Watts 200-277V AC 80 Plus Platinum Redundant Hot-Pluggable Power Supply for Poweredge 2950
SKU: DPS-750AB-3-A
Price: $205.26
DPS-750AB-8A - HP 750-Watts 200-277V AC 80 Plus Platinum Redundant Hot-Pluggable Power Supply for Poweredge 2950
SKU: DPS-750AB-8A
Price: $273.91
639173-001 - HP 750-Watts 48V DC Common Slot High Efficiency 80 Plus Platinum Hot-Pluggable Switching Power Supply for G8
SKU: 639173-001
Price: $378.95
754377-001 - HP 500-Watts 100-240V Flex Slot 80 Plus Platinum Hot-Pluggable Power Supply For HPE Proliant DL360 G9 DL380 G9 ML350 G9 GEN9 HYPER CONVERGED 380
SKU: 754377-001
Price: $168.42
P24681-B21 - HPE 3000-Watts 200-277V AC Platinum Power Supply for Xl290n Gen10 Plus
SKU: P24681-B21
Price: $170.53
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.