Base units of single board computers

COMMELL HE-772 Half-size PCI-bus SBC with Intel Atom dual-core single board computer with pcie slot ZimaBoard is a low-cost single board server exclusively designed for makers and geeks It has single board computer with pcie slot STS Industrial Grade Fanless Embedded Computer with PCI slot PCIe slot Box PC Embedded Single Board Computer ₹ 18,000 Comptek Computer Systems

single slot ac grill slot , microSD card slot, 24-pin expansion header Network No onboard Wi-Fi or Bluetooth, 2x Gigabit Ethernet Power 15V4A