This article covers StarTech.com ドック.

Overview

The StarTech.com DK30A2DH is a hybrid docking station that supports both USB-C and USB-A host connections. It delivers dual 4K 60Hz displays via two DisplayPort and two HDMI ports, offers a six-port USB-A 3.0 hub, Gigabit Ethernet, and a 3.5mm audio combo jack. Designed for users who want to expand a laptop into a full workstation with a single cable, it balances versatility and affordability. While it lacks USB-C Power Delivery, which means the host laptop must be charged separately, its broad compatibility with Windows, Chrome OS, and macOS makes it a practical choice for mixed-device offices and home setups.

Connectivity & Compatibility

The DK30A2DH connects through a USB-C or USB-A port supporting USB 3.0 (5Gbps). It works with Intel- and Apple M1/M2-based MacBooks, Dell, HP, Lenovo, and other Windows/Chrome laptops. It is not Thunderbolt-native, but will function at USB-C speeds. Video: 2x DisplayPort + 2x HDMI, supporting dual 4K@60Hz (any combination of two displays). USB ports: 6x USB-A 3.1/3.2 Gen 1 (5Gbps) – enough for peripherals, storage, and input devices. Network: Gigabit Ethernet (RJ-45) for reliable wired connectivity. Audio: 3.5mm combo jack for headset or microphone. No USB-C Power Delivery pass-through – the dock requires its own power adapter (40W included). All video modes require that the host PC supports dual display output over USB-C or USB-A; some older hardware may limit to single display.

Product Info

Released around 2021, the StarTech.com DK30A2DH sits in the mid-range docking station category. Its key differentiator is the hybrid USB-C/USB-A interface, making it compatible with older laptops that only have USB-A. The retail market price is approximately ¥16,765 (tax included). The package includes the dock, a 40W AC adapter, a USB-C cable, and a vertical stand for space saving. Standard warranty is 2 years from StarTech. Purchasing options include and the official StarTech online store.

Best Use Cases

Remote workers needing dual monitors: If you use a laptop at a desk with two external 4K screens, this dock provides a clean cable-management solution. The flexibility to mix DisplayPort and HDMI is a practical advantage. Users with many USB-A peripherals: With six high-speed USB-A ports, you can connect a keyboard, mouse, external drive, SD card reader, and more without needing additional hubs. Mixed-brand office environments: Because the dock works with both USB-C and USB-A hosts across Windows, macOS, and Chrome OS, it can standardize workstations for employees with different laptop models. Those who don't need PD charging: If your laptop already has a dedicated power adapter or you use a separate PD charger, this dock offers great value without the cost of Thunderbolt docks. However, if single-cable charging is essential, consider PD-enabled models like the CalDigit TS3 Plus or Anker PowerExpand.

Product Disclosure (Amazon)

  • Manufacturer: StarTech.com(スターテック)
  • Seller: Startech Japan KK
  • Fulfilled by: Amazon
  • ASIN: B08R6936N6
  • Note: This article covers a manufacturer-made product based on Amazon listing details.