Replacement for SSP-300ST: Drop-In Alternatives We Stock
Looking for a replacement for the SSP-300ST (SSP-300ST - Seasonic 300-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC)? Pro Disk Network ships 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 SSP-300ST
| SKU | SSP-300ST |
|---|---|
| Product | SSP-300ST - Seasonic 300-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC |
| Current price | $242.41 |
| Stock status | In Stock |
| Detail page | View SSP-300ST › |
Drop-in replacements for SSP-300ST
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.
SSP-300TBS - Seasonic SSP-300TBS 300W 80 PLUS Bronze TFX 12 V v.2.31 Power Supply w/ Active PFC F0
SKU: SSP-300TBS
Price: $318.32
SSP-350ST - Seasonic 350-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC
SKU: SSP-350ST
Price: $247.58
M12II-750 - Seasonic M12II EVO Edition SS-750AM2 750-Watts 80-Plus Bronze ATX 12V/EPS 12V Power Supply
SKU: M12II-750
Price: $216.61
SS-620GM2 - Seasonic M12II EVO Edition SS-620GM2 620-Watts 80-Plus Bronze ATX 12V/EPS 12V Power Supply
SKU: SS-620GM2
Price: $224.50
SS-650HT - Seasonic S12 650-Watts 80-Plus Bronze ATX 12V & EPS 12V v2.31/v2.92 Power Supply
SKU: SS-650HT
Price: $226.08
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.