Satechi's OntheGo line again. The travel sub-brand started with a fold-flat 3-in-1 charger, and the OntheGo 7-in-1 Multiport Adapter applies the same packing logic to ports: a magnetic, hockey-puck USB-C hub that hangs HDMI, two USB-A jacks, SD and microSD readers, gigabit Ethernet, and pass-through power off an iPhone, iPad, or MacBook.

Satechi's OntheGo hub sticks seven ports to your iPhone

The puck measures 2.55 inches across, weighs 68 grams, and stows its short coiled host cable around its own body. Magnets grip a MagSafe iPhone directly; everything else gets the bundled 3M adhesive ring.

Key specs

VideoHDMI 2.0, 4K at 60Hz
Data2x USB-A at 5Gbps, SD and microSD UHS-I
PowerUSB-C PD, 100W in and 80W out, charge only
NetworkGigabit Ethernet

The reviews run warmer than the spec sheet reads. Macworld handed it an Editors' Choice nod alongside Simon Jary's caveat that "none of the ports are pro-level top end but they are capable enough for most users." Cult of Mac's Ed Hardy ran it off an iPhone 17 and scored it 4 out of 5: 4K/60 playback held on an external monitor, and the USB-A ports moved a gigabyte in three and a half seconds. The hub fed 32W back to the phone through the same cable while everything ran.

What works

  • Magnets held through Hardy's loaded test, with HDMI, a charger, a thumb drive, and an SD card all attached
  • The coiled cable stays on the body, so nothing packs separately
  • The adhesive ring extends mounting to laptop lids and other non-magnetic gear

What to know

  • The USB-C port is charge-only passthrough, per Cult of Mac
  • Card readers run UHS-I, rated 104MB/s; Hardy's SD test saw 22MB/s
  • Ethernet is gigabit where rivals run 2.5Gb, per Macworld
Satechi's OntheGo hub sticks seven ports to your iPhone

The bigger story is that this category exists at all. USB-C made the iPhone a regular citizen of the port world, and accessories now treat it as the computer it has quietly become. iPhoners who leave the laptop home can drive a 4K display, wired internet, and a camera card from one puck.