MFJ-1270 -- TNC-2 Packet Controller
- MFJ-1270C -- TNC2 HF/VHF Packet
- MFJ-1270CT -- TNC2 HF/VHF Packet Turbo
- MFJ-1270CTX -- TNC2 HF/VHF Packet Turbo w/ 240 VAC
- MFJ-1270CX -- TNC2 HF/VHF Packet w/ 240 VAC
- MFJ-1270D -- Link
The MFJ-1270D has a world-wide reputation as the most reliable TNC in the world.
Thousands are used as digipeaters, nodes, BBS and used in all kinds of commercial applications working 24 hours -- many work for years without a single failure.