UART(TTL) to USB2.0,RS485,RJ45/Ethernet(IEEE802.3) adapter CH340/MAX1348/CH9121 £4.03 to £10.26£10.80
RS-232 to RS485/ USB/CAN2.0/Ethernet converter e.g.industrial network/automation £10.18 to £16.24£16.22
ETHERNET(IEEE802.3)to RS-485, RS-232, UART(TTL) adapter CH9121, CH9120 10/100Mbp £12.08 to £18.73£12.72