Color: As shown in the First image. Quantity and size : As shown in the title or description.Ethernet Relay Network Wifi Switch - Can Rs485 Coap Domoticz Timer ModuleWhen You Choose: Ethernet Means Just Support Ethernet Ethernet WIFI Means Support Ethernet and WIFI Ethernet RS485 Means Support Ethernet and RS485 Ethernet CAN Means Support Ethernet and CAN Features: Support Multiple Channel Relay, On/Off/Delay/MomentarySupport Domoticz Support Multiple Interface RJ45/RS485/CAN/WIFI Support HTTP GET CGI(Ethernet)/UDP/TCP Server/TCP Client 10/100Mbps Ethernet, Auto-MDIX,DHCP Ip,Static IP Local Button Control PC Software Config and Control WEB Config and Control Support Password Support MQTT/Modbus/CoAP Relay Size: 2 Relay: PCB: 87 X 68 Mm Distance of Hole: 80 X 60 Mm Diameter of Hole: 3.5 Mm 4 Relay: PCB: 91.6 X 86.4 Mm Distance of Hole: 85.3 X 80 Mm Diameter of Hole: 3.5 Mm 8 Relay: PCB: 122 X 87 Mm Distance of Hole: 115 X 80 Mm Diameter of Hole: 3.5 Mm