Feature: 1. MIPS MCU with 4MB flash memory and 8MB SRAM, which is able to run on for eCos 2. The product can support for TCP / UDP / MQTT / HTTP / WebSocket protocol 3. Support RS485 to Ethernet/Wi‑Fi conversion, the serial speed up to 230400 bps 4. Support STA / AP / AP + STA mode and support router or bridge network working mode 5. Support TLS/AES/DES3 and other security protocols, Web OTA wireless upgrade and 10/100M Ethernet auto‑negotiation 6. The product is able to support easy configuration through the web interface or PC IOT Service tool Specification: Item Type: RS485 to WIFI/Ethernet Serial Server Model: PW21-H Input Voltage: 100-240VAC Power: 10W Processor/Frequency: MIPS/320MHz Flash/SDRAM: 4MB/8MB Operating System: For ECos Ethernet Port: Port Number: 1 RJ45, 1 WAN / LAN switchable Interface Standard: 10/100 Base-T auto-negotiation Protection: 8KV isolation Transformer Integration: Network Protocol: IP, TCP, UDP, DHCP, DNS, HTTP server/client, ARP, BOOTP, AutoIP, ICMP, Web socket, Telnet, uPNP, NTP Security Protocol: TLS v1.2 AES 128 bit DES3 Wi-Fi Interface: Standard: 802.11 b / g / n Frequency: 2.412GHz-2.484GHz Network Mode: STA / AP / STA + AP Security: WEP / WPAPSK / WPA2PSK Encryption: WEP64 / WEP128 / TKIP / AES Transmitting Power: 802.11b: +20dBm (maximum) 802.11g: +18dBm (maximum) 802.11n: +15dBm (maximum) RX Sensitive 802.11b: -89dBm 802.11g: -81dBm 802.11n: -71dBm Note: The input voltage is within the range of 9-50VDC Product Size: Approx. 64.95mm / 2.6in 97.6mm / 3.8in 34mm / 1.3in 27.5mm / 1.1in 60.95mm / 2.4in 43.89mm / 1.7in 17.6mm / 0.7in . Package List: 1 x Server1 x Antenna1 x English User Manual Note: Input voltage is in the range of 9‑50VDC