But then you loose the USB port. But the main problem of USB adapters is that they don't like being unplugged and plugged back which happens quite frequently with a laptop. With a real port connectivity is pretty much instantaneous. I used USB adapters for a while on a MacBook pro and came to the conclusion that I will never ever buy a laptop without ethernet ports.
What I wonder is why they don't come up with a mini-ethernet port format? Ethernet ports aren't exactly high tech.
> What I wonder is why they don't come up with a mini-ethernet port format?
I suspect that is part of the problem. The plug is just so big - though IMO Thunderbolt and USB adapters work OK. Realise not everyone thinks this way, though.
> But the main problem of USB adapters is that they don't like being unplugged and plugged back which happens quite frequently
Maybe I am unlucky but I tried different adapters. The Apple ethernet adapter is not even plug and play on windows and requires a reboot. But even USB adapters take a while for drivers to load then I had all sort of problems: the connection regularly being recognised as 100Mbit when it should be gigabit or the USB adapter not being recognised after a couple of unplugging without a reboot.
At least Windows and Linux have supported hot plug PCIe for ages.
Although hardware PCIe slot register must support the optional presence detect bits. Also slot capabilities register must report optional hotplug support and surprise removal support.
I guess thunderbolt has those features supported by default.
IIRC, the apple thunderbolt ethernet adapter violates thunderbolt spec and relies on the adapter specific driver for hot-plug when it's supposed to be a generic interface... this is a problem in other OSes running on mac hardware even.
How about a cable that’s USB-C on one side, has the ethernet controller built into the plug (similar to the way a Thunderbolt chip is crammed into the plug), and ethernet on the other end?
The 15-pin I/O connector for ethernet was part of the PCMCIA CardBus standard, which is why dongles could be shared between cards. After PCMCIA picked up speed, a "non-practicing entity" pulled a patent out of their portfolio for a "programmable connector". Because the PCMCIA ethernet card itself plugged into the computer and presented a different connector to the outside world, the NPE was able to sue and/or settle with something like 90% of the companies making PCMCIA ethernet cards & modems.
3COM had a cool connector on some of their cards called XJACK. It was a little tray you slid out of the card. It had a hole that your RJ-45 plug slid into and some pins. It would certainly make for thinner devices today, but the connectors broke pretty easily and you ended up with an ethernet cable sticking out at a weird angle.
Before everybody standardized on RJ-45, there was a standard called AUI which used a 15-pin D connector. Your network card would have an AUI connector and you'd buy an adapter for whatever kind of network you needed to attach to. Apple had their AAUI which was much, much smaller (about the size of 2 mini Display Ports?). But I think licensing kept that from taking off as a standard.
Well, that's actually an alternative. Instead of having a full standard RJ45 port, having a smaller laptop-friendly proprietary socket with a cheap plastic adapter to RJ45. The adapter would just be a piece of plastic and therefore this would avoid all the driver related problems and would not require manufacturers to pick up the phone to agree on a standard with their peers. That would work for me.
I think that was before my time. All it would take is a different plastic socket format. The top 10 laptop manufacturers could agree on a standard in a 10 minutes conference call.
What I wonder is why they don't come up with a mini-ethernet port format? Ethernet ports aren't exactly high tech.