This article covers TECKNET(テックネット) アルミニウム 3ポート USB 3.0 ハブ RJ45 10.
Overview
TECKNET HU043 is a compact USB hub that combines three USB 3.0 ports with a RJ45 Gigabit Ethernet port. It's designed for laptops and tablets that need extra USB connectivity and a wired network connection without cluttering your desk. Data transfer speeds reach up to 5Gbps, while the Ethernet port supports 10/100/1000BASE-T. The aluminum body ensures good heat dissipation and durability. The attached cable is about 30cm long, making it easy to carry in a laptop bag.
Connectivity & Compatibility
The hub connects via a fixed USB 3.0 Micro-B cable (30cm). The three USB 3.0 ports are backward compatible with USB 2.0 and 1.1 devices. The Ethernet port auto-negotiates 10/100/1000 Mbps. It works with Windows, macOS, Chrome OS, and Linux without extra drivers (plug and play). It also supports iPad, Android tablets, and other USB-OTG devices. However, high-power devices like external hard drives may not work reliably because the hub draws power solely from the host. Hot swapping is supported. The hub does not support USB Power Delivery.
Product Info
The TECKNET HU043 has been on the market since around 2015. Current street price is about ¥4,800 on Japan. Manufacturer warranty is 3 years. The package includes the hub and a quick start manual (Japanese may not be included). Market positioning is entry to mid-range. It offers a cost-effective all-in-one solution compared to buying a separate USB hub and Ethernet adapter. Ideal for budget-conscious users who need basic port expansion and wired networking.
Best Use Cases
- Laptop users who need more USB ports and wired Ethernet: Modern ultrabooks often have limited USB ports and no LAN jack. This hub adds three USB-A ports and a Gigabit Ethernet connection simultaneously, keeping your workspace tidy. If you plan to charge multiple devices or transfer large files constantly, consider a powered hub instead. - MacBook / Chromebook expansion: For machines with only USB-C ports, pairing this hub with a USB-C to A adapter provides the same functionality. Its compact size makes it great for travel. Just note there's no USB-C PD pass-through, so you'll need to charge separately. - Tablet users requiring a stable wired connection: When Wi-Fi is unreliable, an OTG-compatible tablet can use this hub for wired networking. However, power limitations on some tablets may cause unstable operation; a portable router might be a better alternative in those cases.
Product Disclosure (Amazon)
- Manufacturer: TECKNET
- Brand: TeckNet
- Seller: Amazon US
- Fulfilled by: Amazon US
- ASIN: B0178HOTOU
- Note: This article covers a manufacturer-made product based on Amazon listing details.





