This RasTech kit pairs the 8GB Raspberry Pi 5 with a 64GB card, the Active Cooler and the proper 27W power supply — the parts that stop a Pi 5 throttling inside a closed cabinet. Dual 4Kp60 HDMI, gigabit Ethernet, Wi-Fi and Bluetooth are all on the board.
It is the most headroom a Pi build can have, boxed.