BFKK 3U Rackmount Server Chassis EATX/ATX/MATX 4x5.25 6x3.5 Top/Side Cooling
- Rackmount
myVolts
AT power supply delivers 1800 W peak and 1600 W at 110 V to run eight GPUs with 90 % conversion efficiency and temperature-controlled fan
This 1800 W unit delivers up to 1600 W at 110 V and is built to feed eight graphics cards in a cryptocurrency mining rig. It accepts a wide input range from 100 V to 240 V and uses an AT form factor for compatibility with standard mining frames. The 12 V rail provides the bulk of the power needed for GPU-heavy workloads.
A temperature-controlled fan spins only when internal heat exceeds 50 degrees Celsius, ramping speed as temperature rises to keep noise low during lighter loads. The manufacturer claims a 90 % conversion rate, which reduces wasted energy and helps limit heat output under continuous operation. Firm cable seating is essential to avoid short-circuit risk.
The unit includes eight SATA connectors and six-pin leads, though four-pin CPU and dual four-pin plugs are not supplied. An unused pin position on the interface is normal because the negative 5 V line has been omitted. Ensure your mining frame can accommodate an AT-style supply and that all GPU power cables match the available connectors.
| Type | AT |
|---|
Connect every cable firmly to the mining machine's port before powering on; a loose link can cause a short circuit and fire risk, which is the step users most often rush.
The temperature-controlled fan only spins above 50 degrees Celsius, so plan to clean dust from the heatsink and verify fan operation periodically to maintain cooling performance.
At 110 V input the PSU delivers 1600 watts maximum, so the input-voltage power ceiling is the first constraint you will hit during continuous mining.
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