This article covers j5create USB Cハブ.

Overview

The j5create USB-C Hub JCD392 is a compact travel dock designed to expand the connectivity of USB-C laptops, tablets, and even desktop PCs. It packs a 4K 60Hz HDMI output, three SuperSpeed USB 10Gbps ports, 100W Power Delivery pass-through charging, and a Gigabit Ethernet port into a single, portable unit. This makes it an ideal companion for professionals and creators who need reliable multi-device connectivity on the go. Compatible with USB4, Thunderbolt 3, and Thunderbolt 4 hosts, the JCD392 also supports DisplayPort 1.4, enabling 1440p QHD at 120Hz for smoother gaming or high-refresh-rate productivity. It strikes a strong balance between port selection, performance, and affordability.

Connectivity & Compatibility

The JCD392 connects to any USB-C host device with a single cable (not included) and works plug-and-play without driver installation. It is backward compatible with USB 3.1 and USB 3.2. Port lineup: HDMI 2.0: up to 4K 60Hz (via DisplayPort 1.4 alt mode). Also supports 1440p QHD at 120Hz. USB-C 10Gbps: one downstream data port. USB-A 10Gbps: two downstream ports for peripherals. USB-C PD pass-through: supports up to 100W input for charging the host device. * Gigabit Ethernet (RJ-45): for wired network connectivity. Compatible with a wide range of devices including MacBook, Chromebook, Dell XPS, Microsoft Surface Pro, and many other USB-C laptops and tablets.

Product Info

Released around 2022, the j5create JCD392 sits in the mid-range tier of USB-C hubs. It offers a compelling feature set — 4K 60Hz video, 10Gbps data, 100W PD, and Ethernet — at a price point typically around ¥11,000–¥12,000 in Japan. The manufacturer provides a 2-year limited warranty. Note that a USB-C cable is not included in the box.

Best Use Cases

Mobile professionals: Ideal for users who frequently work from cafes, co-working spaces, or hotel rooms. Connect an external monitor, wired network, and multiple USB accessories to a single USB-C port. Content creators: The 4K 60Hz HDMI output is perfect for video editing or design work on a large external display. The 10Gbps USB ports allow fast file transfers to external SSDs. * Gamers: With support for 1440p QHD at 120Hz, this hub can drive high-refresh-rate gaming monitors, making it a great choice for laptop gamers who want a smoother experience on a bigger screen.

Product Disclosure (Amazon)

  • Manufacturer: j5create
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B09Y8QR3GY
  • Note: This article covers a manufacturer-made product based on Amazon listing details.