PNY Technologies, Inc. Quadro A400 4GB GDDR6 4 Mini DP workstation graphics card

Entry-level workstation GPU for multi-display rigs

The PNY Quadro A400 ships with 4 GB of GDDR6 memory on a 64-bit bus and four mini-DisplayPort outputs. It plugs into a PCI Express 4.0 x8 slot and measures 162.56 mm long. The card draws all power from the slot, so no auxiliary cable is needed. Windows 10 and 11 64-bit are supported.

Steady throughput for CAD and signage workloads

Because the board relies solely on slot power, clock speeds stay within a tight thermal envelope during long renders or continuous video walls. The 64-bit memory interface limits peak bandwidth, so large textures or heavy compute queues will throttle sooner than on wider-bus cards. Fan noise remains low under constant load.

Check slot wiring and display adapters before buying

Your motherboard must wire the PCIe slot for at least x8 electrical lanes to avoid a bottleneck. The 300 W minimum power supply rating assumes a typical system; verify your unit can deliver that headroom. Four mini-DisplayPort cables or active adapters are required to drive four monitors.