# j5create JCH451-EJ USB-C Hub Review | 4K HDMI, 3 USB-A, Aluminum > j5create JCH451-EJ USB-C hub adds 4K HDMI and 3 USB 3.0 ports to your laptop. Plug-and-play, aluminum build, self-power capable. Tags: usb-hub, j5create, jch451-ej, usb-c, hdmi, 4k Source: https://www.amazon.co.jp/dp/B085VNH2N9 Article page: https://web-autoai.com/articles/j5create-usb-c-4k-hdmi-usb-a-x-3-5gbps-dp-alt-mode-macbook?lang=en Prices and ratings change over time — check the article page for the current values. --- The j5create JCH451-EJ is a compact USB-C hub that adds one HDMI output and three USB-A 3.0 ports to your laptop. It supports video output up to 4K at 30Hz, making it suitable for presentations, dual-monitor setups, or connecting to a larger display while working remotely. The three USB-A ports each offer up to 5Gbps transfer speeds, allowing you to connect peripherals like mice, keyboards, and flash drives simultaneously. The hub features a champagne-gold aluminum chassis that aids heat dissipation and gives a premium feel, while weighing only 49.5 grams for easy portability. It operates on bus power by default but includes a Micro-B port for self-powering when using high-draw devices (a 5V/2A+ adapter is recommended, not included). Plug-and-play compatibility spans Windows, macOS, ChromeOS, and iPadOS, with no driver installation required. The hub connects via a USB-C input (USB 3.1 Gen1) and requires DisplayPort Alt Mode support on the host device for HDMI output. It is compatible with Windows 11/10, macOS, ChromeOS, and iPadOS, and works plug-and-play without any driver installation. Power is supplied through the USB-C bus by default, but a Micro-B port allows for self-powering when using high-draw peripherals (a 5V/2A+ USB power adapter is recommended, not included). The hub works with a wide range of USB-C laptops including MacBook Pro/Air, Surface Book, HP Pavilion, Dell Inspiron, and Lenovo IdeaPad. Note that HDMI output only functions if the host USB-C port supports DisplayPort Alt Mode; some budget laptops may lack this feature, so check your device specifications beforehand. Released around 2020, the j5create JCH451-EJ remains widely available. The package includes the hub, a quick-install guide, and a warranty card; no power adapter is included. j5create offers a 2-year warranty with domestic support via phone, email, and AI chat. Given its solid build and adequate port selection, it represents a practical choice for everyday use. The aluminum chassis is a notable advantage over plastic competitors in the same price bracket, offering better heat dissipation and a more premium feel. Remote workers and travelers: The HDMI output lets you connect to hotel or office monitors easily, and the lightweight design won't weigh down your bag. Self-power capability ensures stable operation even when using power-hungry peripherals in meeting rooms. USB-C laptop owners needing more USB-A ports: With three USB-A 3.0 ports, you can keep using your existing peripherals without adapters. Ideal for connecting a mouse, keyboard, and USB drive at the same time, or for hooking up legacy USB-A devices like external hard drives and printers. Users who prefer no-driver setups: Plug-and-play compatibility across multiple OSes makes it hassle-free, especially in managed IT environments or for users who switch between macOS and Windows. Creative professionals: Fast data transfer for moving photos and videos via USB drives. Note that there is no SD card slot, so a separate card reader is needed for direct camera imports. * Caveats: HDMI output requires DisplayPort Alt Mode on the host; not all USB-C ports support it. The hub does not support 4K at 60Hz, so it's not suitable for high-refresh-rate gaming monitors. Additionally, it lacks USB Power Delivery pass-through, so you'll need a separate charger for your laptop. ### Product Disclosure (Amazon) - Manufacturer: j5create - Seller: j5create Direct - Fulfilled by: Amazon - ASIN: B085VNH2N9 - Note: This article covers a manufacturer-made product based on Amazon listing details.