ch340 module instead of pl2303 ch340g rs232 to ttl module upgrade usb to serial port in nine brush small plates
ch340 module instead of pl2303 ch340g rs232 to ttl module upgrade usb to serial port in nine brush small plates
1000. Base-BX WDM Bi-Directional SFP module, TX: 1550 nm and RX: 1310 nm, 1 LC Simplex port , up to 2 km transmission distance in 9/125 ?m SMF (Single-Mode Fiber), Supports Digital Diagnostic Monitoring (DDM)