The string is not random gibberish. It tells a complete story:
Up to 300 Mbps operating over a dedicated 2.4 GHz frequency channel. 3160 091 v60310 build 210407 rel7370n tlwr850n
The base version of the TP-Link firmware architecture. The string is not random gibberish
The two external antennas provide decent coverage for a small-to-medium-sized home or apartment (up to ~2000 sq ft under ideal conditions). Limitations: 3160 091 v60310 build 210407 rel7370n tlwr850n