Replacement for SS-300FS: Drop-In Alternatives We Stock
Looking for a replacement for the SS-300FS (SS-300FS - Seasonic 300 Watts Active PFC ATX Power Supply)? 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 SS-300FS
| SKU | SS-300FS |
|---|---|
| Product | SS-300FS - Seasonic 300 Watts Active PFC ATX Power Supply |
| Current price | $293.26 |
| Stock status | In Stock |
| Detail page | View SS-300FS › |
Drop-in replacements for SS-300FS
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-300ST - Seasonic 300-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC
SKU: SSP-300ST
Price: $242.41
0761345-06205-3 - Antec High Current Gamer Series 520-Watts ATX12V 80+ Bronze Certified Active PFC Power Supply For Active PFC
SKU: 0761345-06205-3
Price: $348.70
SSR-750RT - Seasonic 750-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply with Active PFC
SKU: SSR-750RT
Price: $229.57
S12G-750 - Seasonic SSR-750RT 750-Watts 80-Plus Gold ATX 12V/EPS 12V Power Supply with Active PFC
SKU: S12G-750
Price: $242.57
SSP-350ST - Seasonic 350-Watts 80-Plus Bronze ATX 12V v2.3 Power Supply with Active PFC
SKU: SSP-350ST
Price: $247.58
SS-460FL2 - Seasonic 460-Watts Active PFC F3 80-Plus Platinum Fanless ATX 12V/EPS 12V Power Supply
SKU: SS-460FL2
Price: $248.16
SS-400H1U - Seasonic 80+ 1U 400-Watts ATX 12V ACTIVE PFC 80-Plus Power Supply
SKU: SS-400H1U
Price: $250.53
SSR-750RM - Seasonic Active PFC F3 750-Watts 80-Plus Gold ATX 12V / EPS 12V Power Supply
SKU: SSR-750RM
Price: $251.47
SS-520FL2 - Seasonic Active PFC F3 520-Watts 80-Plus Platinum ATX 12V/EPS 12V Fanless Power Supply
SKU: SS-520FL2
Price: $290.16
PLATINUM-760 - Seasonic SS-760XP 760-Watts 80-Plus Platinum ATX 12V/EPS 12V Power Supply with Active PFC
SKU: PLATINUM-760
Price: $332.03
SS-750XP2 - Seasonic Snow Silent-750 750-Watts 80-Plus Platinum ATX 12V/EPS 12V Power Supply with Active PFC
SKU: SS-750XP2
Price: $332.03
SSR-550RT - Seasonic 550-Watts 80-Plus Gold ATX 12V Power Supply with Active PFC
SKU: SSR-550RT
Price: $368.42
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.