Product Overview

Compared to CM1, the CM3/CM3L supports more OS, like Windows 10 (the free IOT-specific version from
Microsoft)
Compute Module IO Board Plus Features
Compatible with the Compute Module IO Board V3 from the Raspberry Pi Foundation
Raspberry Pi GPIO header, for connecting sorts of Raspberry Pi HATs
Arduino connectivity, also supports Arduino shields
1-WIRE interface, for connecting single-bus devices like DS18B20
4x keys, 4x LEDs, 1x Buzzer, for I/O testing
Onboard USB HUB, allows connecting more USB devices
IR receiver, IR remote control is available
Onboard USB TO UART, for serial debugging
Sensor interface
10-bit ADC, 38KSPS, 11-ch (6-ch for Arduino interface, 5-ch for sensors)
16-bit DAC, 2-ch
Onboard RTC, one of the most common and useful functions
What's on the Compute Module IO Board Plus