MS-RTK module:

Download: Datasheet Dual-Frequency MS-RTK module
Download: Datasheet Triple-Frequency MS-RTK module

GNSS antennas:

Download: Datasheet Low-Cost, Dual-Frequency GNSS-Patchantenna
Download: Datasheet High-Class, Dual-Frequency GNSS-Antenna
Download: Datasheet High-Class, Survey-Grade, Triple-Frequency GNSS-Antenna