USB-C's depth allows for a thinner laptop.
Same with the Butterfly Keyboard...
After Ive left we got the 2021 MBP 14"/16" that was thicker even when the chips inside are 5nm instead of 14nm. A thicker laptop allows for better HSF, keyboard, battery, etc. Very few complained it being bigger as the end user wanted a desktop replacement that does not throttle.
If I were in charge of the Macbook Pro I/O port transition from 2015 to 2025 I'd have done this.
Year | MagSafe | SDXC | HDMI | TB3/TB4/USB4 | TB2 | USB 3.1 | Total USB ports |
2015 | 1 | 1 | 1 | 0 | 2 | 2 | 4 |
2016 | 1 | 1 | 1 | 1 | 1 | 2 | 4 |
2017 | 1 | 1 | 1 | 1 | 1 | 2 | 4 |
2018 | 1 | 1 | 1 | 1 | 1 | 2 | 4 |
2019 | 1 | 1 | 1 | 2 | 0 | 2 | 4 |
2020 | 1 | 1 | 1 | 2 | 0 | 2 | 4 |
2021 | 1 | 1 | 1 | 2 | 0 | 2 | 4 |
2022 | 1 | 1 | 1 | 3 | 0 | 1 | 4 |
2023 | 1 | 1 | 1 | 3 | 0 | 1 | 4 |
2024 | 1 | 1 | 1 | 3 | 0 | 1 | 4 |
2025 | 1 | 1 | 1 | 4 | 0 | 0 | 4 |
Last month's MBP 16" would have these I/O
- 1 MagSafe
- 1 SD Express
- 1 HDMI 2.1a
- 3 TB4/USB4 40Gbps (USB-C)
- 1 USB 3.1 10Gbps (USB-A)
As we are in 2023 I think USB 3.1's traditional USB rectangular shape is ready for its last appearance in all 2024 model Macs. Those who bought that 2024 Mac with that single USB 3.1 port will use it until year 2028, 2029, 2030 or by my use case until year 2034.
By the 2030s only people using OpenCore Legacy Patcher (OLCP) would be using USB-A. In the same sense that brand new computers with COM, Parallel and VGA ports are used very rarely by consumer or office work.