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geerlingguyyesterday at 3:19 PM6 repliesview on HN

Apparently the two USB-C ports are different specs [1]

  - USB 3.0 10 Gbps with DisplayPort support
  - USB 2.0 480 Mbps
Both support charging but only one supports higher speeds and DisplayPort (A18 Pro limitation, as Apple probably doesn't dedicate much silicon to USB I/O).

[1] https://www.macrumors.com/2026/03/04/macbook-neo-features-tw...


Replies

Cthulhu_yesterday at 4:55 PM

Makes sense, the iphone has only one port after all. Interesting that it supported a second one though, or maybe that's the Pro revision designed for this use case?

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wpwpwpwyesterday at 10:04 PM

The USB 2.0 should be the one on the back, so the charging cable does not interfere with me plugging and unplugging things from the good port.

w10-1yesterday at 7:21 PM

> - USB 3.0 10 Gbps with DisplayPort support

I'd like to run the external display plus an external SSD at USB 3 speeds, so I'd be waiting for experience reports on whether the one port can handle both without constraining the filesystem transfer speeds.

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kunaiyesterday at 3:40 PM

Well the costs had to be cut somewhere. At least they put a headphone jack in it, so they're doing better than Microsoft on that front (who inexplicably removed it from the SP line)

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regularfryyesterday at 6:37 PM

Charging in and DisplayPort out on the same socket would mean an additional dongle or hub or something, so there's at least that reason for having both.

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pm90yesterday at 4:41 PM

Im surprised that they’re doing DP and not thunderbolt?

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