Unused, sitting at home. Have 2 of these - $60 for the pair - less then 2 months old.

https://www.gowifi.co.nz/antennas/ant-262.html

High Gain 7dBi 698~960/1710~2700MHz GSM/3G/4G LTE Magnetic Base Omni Antenna with SMA Male. This Indoor/outdoor Omni is suitable for extending coverage or as a replacement antenna for any RBI or Cellular modem / router.

These are also the perfect antenna for building custom 3G/4G/LTE Routers using MikroTik and Sierra Wireless cards.

Note: This 3G/4G/LTE antenna is 45cm long as it is a super high gain mobile antenna