FAQ:

This is NOT a multimode TNC, JUST PLAIN OLD REGULAR AX.25 PROTOCOL PACKET .
It does NOT have GPS built-in
It does NOT have an internal mailbox

Again, this is a regular TNC, I use mine on the DX packetcluster and it works FB!

(Note to nocoders, FB is a CW mans term meaning  "Fine Business", or "good")

Packet TNC (tiny!)

$75

Price:$75 (was ($179.95)
Manufacturer:AOR
Model:AR-210
Condition:NEW
Features:Lithium battery backup
Baud rates: 300-19,200
Ax.25 level 2 protocol
Voltage: 10-14vdc @ 200ma
Weight: 3.3 oz
Comes complete with 2 different radio to tnc cables, manual, & power cable.
All you need is a cable to your serial port of computer or dumb terminal

DB-9 connector standard
About the size of a cigarette pack.
NO, the quarter is NOT included!

VERY limited number of Ni-Cad battery packs (plugs inside TNC) $25 each

There is nothing out there cheaper than about $130 or so. Nothing even close to this small size and weight.

Limited quantity.