Question: Which of your antennas cover 5G n41 band (2500 MHz)?

Answer: There are many that cover n41 band (2500 MHz), but here are few exterior and interior 5G antennas because you did not specify which type you needed - inside, or outside 5G antenna?

Unidirectional Outside 5G Antennas:

https://www.signalbooster.com/products/yagi-antenna-50-ohm-band-71-617-to-2700-mhz-wilsonpro-311233

https://www.signalbooster.com/products/2g-3g-4g-5g-617-2700-mhz-outdoor-pole-mount-yagi-directional-antenna

https://www.signalbooster.com/products/rf-boost-long-range-antenna-for-cellular-wi-fi-grid-parabolic

Omnidirectional Exterior 5G Antenna:

https://www.signalbooster.com/products/2g-3g-4g-5g-617-2700-mhz-outdoor-omni-directional-antenna

Above exterior building wall or home roof cellular antennas will boost n41 band frequency signals passively (no powered device needed - just connect to your mobile network router or modem using suitable length cable and proper connector that will fit your cellular internet device).

Directional Interior 5G Antennas:

https://www.signalbooster.com/products/panel-antenna-50-ohm-band-71-617-to-2700-mhz-wilsonpro-311234

https://www.signalbooster.com/products/2g-3g-4g-5g-617-2700-mhz-indoor-wall-mount-directional-panel-antenna