L76X Multi-GNSS,GPS, BDS, QZSS HAT for Raspberry Pi - Waveshare

Features :
Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano
Supports Multi-GNSS systems: GPS, BDS, and QZSS
EASY™, self track prediction technology, help quick positioning
AlwaysLocate™, intelligent controller of periodic mode for power saving
Supports DGPS, SBAS (WAAS/EGNOS/MSAS/GAGAN)
UART communication baudrate: 4800~115200bps (9600bps by default)
Onboard battery holder, supports ML1220 rechargeable battery, for preserving ephemeris information and hot starts
4x LEDs for indicating the module working status
Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32)

GNSS Specifications
Band: GPS L1(1575.42Mhz), BD2 B1 (1561.098MHz)
Channels: 33 tracking ch, 99 acquisition ch, 210 PRN ch
C/A code
SBA: WAAS, EGNOS, MSAS, GAGAN
Horizontal position accuracy:
Autonomous: <2.5mCEP
Time-To-First-Fix @-130dBm (EASY™ enabled):
Cold starts: <15s
Warm starts: <5s
Hot starts: <1s
Sensitivity:
Acquisition: -148dBm
Tracking: -163dBm
Re-acquisition: -160dBm
Dynamic performance:
Altitude (max): 18000m
Velocity (max): 515m/s
Acceleration (max): 4G

General Specifications :
Communication interface: UART
Baudrate: 4800~115200bps (9600bps by default)
Update rate: 1Hz (default), 10Hz (max)
Protocols: NMEA 0183, PMTK
Power supply voltage: 5V / 3.3V
Operating current: 13mA
Operating temperature: -40℃ ~ 85℃
Dimensions: 65mm x 30.5mm

Sources: http://www.waveshare.com/wiki/L76X_GPS_HAT