ITEM NAME:USB Nano V3.0 ATmega328P CH340G 5V 16M Micro-controller board for arduino Z a.imagelink a:hover.imagelink {color:#db3606;.CH340G Replace FT232RL. Support USB download and Power. 1 pairs of TTL level serial transceiver ports RX / TX. 6 PWM ports:D3, D5, D6, D9, D10, D11. 14 Digital input / output ports:TX,RX,D2 ~ D13. 8 analog inputs ports:A0 ~ A7.