There have been some smaller connectors but nothing with widespread adoption. Tyco has something called RJ point 5 which uses standard UTP cable but looks like a squashed RJ 45 and has double the density. Wouldn't save much space on a Pi thigh its meant more for bulk applications. From: Michael Thomas Sent: 12/20/2012 13:21 To: NANOG list Subject: why haven't ethernet connectors changed? I was looking at a Raspberry Pi board and was struck with how large the ethernet connector is in comparison to the board as a whole. It strikes me: ethernet connectors haven't changed that I'm aware in pretty much 25 years. Every other cable has changed several times in that time frame. I imaging that if anybody cared, ethernet cables could be many times smaller. Looking at wiring closets, etc, it seems like it might be a big win for density too. So why, oh why, nanog the omniscient do we still use rj45's? Mike