Seminer USB-C OTG Adapter 100W PD Dual USB-C Gray

What the adapter does

The Seminer USB-C OTG adapter splits one USB-C port into two, giving a 100W Power Delivery charging port and a USB 3.1 data port rated at up to 10Gbps. It targets owners of iPhone 15, MacBook, Samsung Galaxy S22 or S23, Pixel 6 or 5, Chromecast with Google TV 2020, Surface Book and similar Type-C devices who need simultaneous charging and peripheral access. The gray housing matches most modern laptops and phones. Buyers who require more than two ports or legacy USB-A connectors will need a different solution.

Thermals noise and power draw

The adapter delivers up to 100W at 20V 5A through its dedicated PD port while the data port handles high-speed transfers. No active cooling is present, so heat dissipation relies on the metal shell and cable length during sustained loads. Power draw scales with the attached charger and device; the splitter itself adds negligible overhead. There are no fans or moving parts, so operation stays silent in normal use.

Build quality and daily connectors

A compact aluminum-alloy shell protects the internal PCB and resists wear from frequent insertion. Both female ports are clearly marked for charging or data, reducing the risk of mis-plugging. The short pigtail cable keeps the assembly tidy on a desk or in a bag but limits reach to nearby ports. Users who need longer reach or right-angle strain relief should consider a separate extension cable.