Shuttle DS77U now $217

The Kaby Lake barebone rocks a Core-based Celeron 3865U, a much more powerful processor (especially in single thread performance) than the Apollo Lake Celerons.

The DS77U features two SO-DIMM slots (up to 32GB RAM), a card reader, two USB 3.0 ports, four USB 2.0 ports, a DisplayPort and HDMI ports, as well as two Intel Ethernet ports. The DS77U also comes with dust covers to hide the COM ports.

Source: Amazon