The 4UV supports anywhere from 4 to 8 double-width cards or 5 to 10 single-width cards. There are several configurations available both in Gen 3 and Gen 4. PCIe cables connect the accelerator to a host server. Two fan choices allow for high-power GPU cooling up to 300W per GPU or a set-and-forget manual speed control using PWM fans when lower power GPUs or add-in cards are used. Two 2000W power supplies provide up to 4000W of usable power to the GPU accelerator system.