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Compact 1U Flex ATX modular PSU with black metal casing and rear fan grille

Ruth's sister

Ruth's sister TF400 350W server power supply

SKU CH-GB99-G41EG

A 350 W Flex ATX power supply with full modular cables, Active PFC and 90 % efficiency for 1U servers and small-form-factor systems

  • 350W rated power supports POS and AIO systems
  • Full modular cables simplify small-chassis builds
  • Active PFC delivers 90% efficiency at 220V input
  • 25A on 3.3V and 45A on 12V rail for stable CPU power
  • Temperature-controlled PWM fan reduces acoustic noise

TF400 350W Flex ATX unit

This 350W Flex ATX power supply fits 1U and small-form-factor chassis such as POS and all-in-one systems. It delivers a maximum output of 450W with 90% efficiency and active PFC. The unit is fully modular and built for 220V mains only.

Full modular cabling and connectors

All cables detach from the unit, leaving only the 20+4 pin motherboard lead, an 8 pin CPU connector, two 6 pin PCIe leads and two SATA plugs inside the case. This reduces clutter in tight enclosures and eases assembly or service work.

Temperature-controlled fan and 220V input

A PWM fan adjusts speed to load, keeping acoustic output low during typical operation. The supply accepts 164V to 264V AC and does not support 110V regions. Continuous rated power is 350W across the 3.3V, 5V and 12V rails.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $52.99
Cheaper than about 86% of the 3,798 comparable items (median $131.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What does the 20+4 pin ATX interface limit in practice?

The 20+4 pin ATX connector supplies up to 350 W continuous and 450 W peak across the 3.3 V, 5 V and 12 V rails.

What physical space does the 170×40×83 mm Flex ITX form factor need?

It fits a standard 1U Flex ITX bay measuring 170 mm deep, 40 mm high and 83 mm wide.

How is the full-modular unit installed, and which step is often missed?

Mount the 1U chassis, plug only the required 20+4 pin, 8-pin CPU, two 6-pin GPU and two SATA cables, then verify the 164-264 V AC input matches your mains supply.

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