Zte 5g Cpe Mc801a External Antenna ((full)) -

The MC801A is a compact unit. To maintain that aesthetic, ZTE uses small internal PCB antennas. These work well when you have a line-of-sight (LOS) to a 5G tower within 500 meters. But 5G is fragile. Millimeter waves (mmWave) and even C-band (3.5 GHz) are easily blocked by:

If you already have good signal, an external antenna may not increase speed significantly. zte 5g cpe mc801a external antenna