@Rocc The plug you a thinking of is 8P8C - RJ-45S is a proprietary slotted variant of the 8P8C plug that is not used anymore.

8P8C plugs are arguably longer lasting than usb-c plugs and I reckon that due to the size, it'll actually be possible to deal with or prevent pin corrosion unlike on usb-c plugs.

@scathach >I just need to upgrade my wifi card
Time to swap to a freedom-respecting 802.11n Atheros card? (yes, some models support 802.11n 5GHz).