EN-Labs PCIe 3.0/4.0 USB 3.2 Gen2 5-Port Expansion Card

Five-port USB 3.2 Gen2 add-in card

The EN-Labs expansion card adds five USB 3.2 Gen2 ports to a desktop PC through a single PCIe slot. It provides three USB-A and two USB-C connectors, each capable of up to 10 Gbps when used individually. The card fits full-profile brackets and requires a PCIe x4, x8 or x16 slot; it will not work in an x1 slot. It targets builders who need more high-speed ports for external drives or peripherals.

Thermals and power draw

The card draws all required power from the PCIe slot itself, with no extra power connector needed. The ASMedia ASM3142 controller runs without active cooling, so it adds no fan noise to the system. Power consumption scales with the number of active devices, but the supplier gives no specific wattage figures. Buyers who need guaranteed thermal data for a tightly packed chassis will not find it here.

Build quality and daily mounting

A full-profile metal bracket is included, and the card only mounts in standard-height PCIe slots; low-profile cases are not supported. The five rear ports sit in a single row, leaving enough space for typical cables but offering no extra internal headers. The ASM3142 chipset handles USB 3.2 Gen2 signalling on PCIe 3.0 or 4.0 links. Systems limited to PCIe 2.0 will see transfer speeds drop to roughly 700–800 MB/s, while PCIe 3.0 boards can reach 900–1060 MB/s.