The M10 GPS uses multi-constellation GNSS powered by u-blox M10 series, a concurrent GNSS receiver which can receive and track multiple GNSS systems. Owing to the multi-band RF front-end architecture all four major GNSS constellations, GPS,Galileo, GLONASS and BeiDou can be received concurrently.

It also comes with the IST8310 compass, tricolored LED indicator, buzzer, and a safety switch. There are 3 different connectors options for different purposes. This module ships with a baud rate of 115200 5Hz.
 
The high-gain 25 x 25 mm patch antenna provides excellent performance and the omnidirectional antenna radiation pattern increases flexibility for device installation. It features active circuitry for the ceramic patch antenna, rechargeable backup battery for warm starts. 
 
High-Speed Drone GPS Comparison
This blog post put Holybro M10, M9N, F9P and Matek M10Q was put to an ultimate test to determine which GPS units could keep pace with a high-speed drone in acro mode while ensuring precision during RTL and autonomous missions.
 
Features
Newest Ublox 10th Gen GNSS
Fast & Accurate Positioning
High-gain 25*25*4mm antenna
IST8310 Compass
Internal Buzzer, Safety switch
Ultra Bright UI RGB LED
 
SKU12040 - Holybro M10 GPS (JST GHR1.25mm 10pin cable):
This option is the most common, it is used on the This connector can be used on Pixhawk Standard Flight Controller 10pin “GPS Module”or "GPS1" input port.
 
SKU12042 - Holybro M10 Secondary GPS (JST GHR1.25mm 6pin cable):
This connector can be used on Pixhawk Standard Flight Controller 6pin“UART & I2C”or "GPS2" input port as secondary GPS. This GPS is also compatible with the Cube Flight Controller GPS2 Port.         
 
Note
PX4 1.14, ArduPilot 4.3, INAV 5.0.0, Betaflight 4.3.0 or newer is required. 
The Status LED driver has changed. This LED is support in PX4 1.14, ArduPilot 4.4.0 & later.