SSP-300TGS Seasonic Active 300W TFX PSU

High-Efficiency ATX12V Power Supply Unit for Compact Workstations and Appliances with the SSP-300TGS

The SSP-300TGS is a Seasonic ATX12V v2.31 non-redundant AC PSU engineered for low-to-mid power tower builds, embedded systems, and entry server appliances where predictable power delivery and electrical efficiency are prioritized over PSU redundancy. With 80 PLUS Gold efficiency and Active PFC, the SSP-300TGS reduces waste heat and stabilizes input behavior across 100–240V AC, supporting consistent operation in mixed office, lab, and edge environments.

Architecturally, the SSP-300TGS is aligned to platforms that need a standard 24-pin ATX feed and EPS12V CPU power while retaining targeted expansion capability for a single discrete accelerator via 1x PCIe 6+2. Fixed cabling simplifies qualification and reduces connector variability in controlled deployments, while SATA and legacy peripheral connectors support common SSD/HDD and appliance-side I/O requirements. Integrated protections (OVP, OPP, SCP) provide baseline fault containment for motherboard, storage, and PCIe devices, and an 80mm rear fan delivers directed exhaust for compact tower and industrial chassis airflow paths.

Why Choose the SSP-300TGS?

The SSP-300TGS is a pragmatic choice when you need an efficient, standards-compliant ATX PSU with a tight power envelope and a clear deployment model: single-GPU workstations, non-redundant appliances, and SMB towers. The SSP-300TGS supports density-to-performance optimization by minimizing thermal load at the PSU level, helping maintain stable chassis temperatures and predictable acoustic profiles under continuous duty cycles.

Seasonic designs the SSP-300TGS with an engineering focus on electrical stability, conservative protection design, and compatibility with modern ATX12V power expectations, enabling reliable integration into standardized data centre-adjacent and edge IT builds.

Key Applications:

• SMB workstation towers with single GPU
• Entry server and network appliance builds
• Embedded and industrial PCs
• Edge compute nodes without PSU redundancy

At Happyware - Server Hardware you benefit from non-binding offers tailored to your deployment quantity and platform requirements, plus the option to extend the warranty up to 6 years to protect long-lived infrastructure based on the SSP-300TGS.