[mt3ck]

More specifically, its the 'connector' piece of the cable, not really the ethernet. It stands for Registered Jack-47 and is more or less a standardization for 'connectors' or jacks.

[dvanduzer]

If there is such a thing as Registered Jack 47, it's gotta be the most obscure engineering standard on the planet.

Based on the context, I'm not sure they even meant to say RJ45, since they mention Ethernet over USB elsewhere in the blurb.

edit: They explicitly say 10/100 RJ45 port later, so it's probably just a typo.

[marquis]

Yeah, super obscure. It does exist but rarely mentioned.

http://www.discount-low-voltage.com/Connectivity/Shielded-Pl...

[dvanduzer]

Incontrovertible evidence. Thanks!