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While I bought my last Tablet I noticed that no Tablet (and most smaller notebooks /convertibles) has a Rj45 port. Which I finde quite dissatisfying since I like to use RJ45 in numerous places. I think a reason could be that Rj45 is simply too big for a Tablet - it is downright massive compared to micro USB /HDMI etc. But that leads me to my question: Why is there no attempt to build a smaller micro-Rj45 port which could be used in constrained spaces?
i asked this on the electronics SE for TabletPCs
– rjt – 2017-09-30T22:00:12.7371RJ45 is actually a large version of RJ11 (or RJ12). Just get a micro USB RJ45 adaptor. Micro USB on 1 end - Full size RJ45 Ethernet adapter on the other. Then it's a matter of drivers. I use mine on a laptop not a tablet. – HeXanon – 2014-06-05T09:28:49.027
Some tablets can be fixed to detachable keyboards, often, these keyboards contain additional IO ports. As to why it hasn't been developed yet, this is very opinion based I think. How do you expect us to answer that? – Dave – 2014-06-05T10:05:08.670
3Basically, the average tablet user has no idea what an RJ45 port is (no matter how you might name it) or how one might use it. How many homes are wired for Ethernet, vs simply using WiFi? – Daniel R Hicks – 2014-06-05T11:30:30.427
Great question, I wondered this too already. :) – Foo Bar – 2014-06-05T14:28:28.823
When there is a market, such a product will emerge. I would not buy it. I bought a small mobile device to be, well, mobile, not tethered to a hole in the wall. – PlasmaHH – 2014-06-05T15:19:14.327
1Prior to the wide availability of wifi a number of manufacturers created small ethernet connectors that then attached to dongles for the full size RJ45 connector. These were most commonly used in PCMCIA and cardbus cards, where space was at a premium. The connectors were not as durable and inexpensive as the typical RJ-45, though, and once wifi became ubiquitous, there was little reason to continue to go down that path. You are an exception. 99% of users don't need, want, or would ever use ethernet from their mobile device, so it make no sense to pursue that. – Adam Davis – 2014-06-05T15:43:58.870
2Hmm... As an embedded systems engineer, I disagree with the flagging of this question as opinion-based. There are several quite concrete reasons for this and several of them are listed in the answers already present. Granted, this question could probably receive a more thorough answer from electrical engineers on electronics.SE. – reirab – 2014-06-05T20:16:58.853