1. Must work with a good radiator 2. Must connect 24pins+4pins ATX 12V power suppy at the same time to power on. 3. Every new motherboard was tested with radiator totally before shipping, that is why copper plate seems to get traces of thermal grease. 9-Bay NAS Mini-ITX Motherboard 4x i226-v 2.5GbE Ports, R9 7940HS 8-core 16 threads, up to 5.2GHz, 2x DDR5, 2x M.2 NVMe PCIe 4.0*2 2280, 1x SATA3.0, 2x SFF-8643(8x SATA3.0 6Gb/s), Triple 4K Display, HDMI2.0, DP1.4, 3x USB3.2, 1x Type-C (USB4)40Gb/s 5. Intel i226-V is a new network card, suggest to install newest version of following systems with supportable kernel: pfSense-CE 2.7, OPNsense 23.x, pfSense Plus, OpenWrt, ESXi, Proxmox 8.x, CentOS etc. Please make clear before buying.