Amazon.com: Mikrotik SXT 6 2-Units Licensed 5.9-6.4GHz Frequency Equipped with RouterOS Level 4 License and 28 Degree Dual Chain 16dBi Antenna. Can be Used as Base Station or CPE : Electronics
Manual:License - MikroTik Wiki
rOSL4: RouterOS Level 4 Software License
Manual:License - MikroTik Wiki
Mikrotik RouterOS Level4 | ОМЕГА
MikroTik Controller (level 4) license
MikroTik RouterOS WISP Level 4 - купить по низкой цене в Екатеринбурге - IPboom
Amazon.com: Mikrotik SXT 6 equipped with RouterOS Level 4 license and 28 degree Dual Chain 16dBi antenna. Can be used as Base Station or CPE : Electronics