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Small black USB dongle with a long external antenna

Techkey Black-5.3-1 Bluetooth 5.3 USB Adapter

SKU CH-9PD9-S0EKP

Bluetooth 5.3 USB adapter adds long-range wireless connectivity for mice, keyboards and headphones on Windows 11, 10 and 8.1

  • ColorBlack
  • Weight0.05 kilograms
  • Bluetooth 5.3 and EDR for faster, low-energy links
  • Class 1 radio plus long antenna reaches 328 ft in open areas
  • Driver-free USB setup works instantly on Windows 11, 10 and 8.1
  • Connects up to five peripherals such as mice, keyboards and headsets
  • Compact 3.74 by 0.67 by 4.29 inch adapter weighs 0.05 kg

Designed for Windows desktops

The Techkey Black-5.3-1 adds Bluetooth 5.3 to desktop PCs and laptops running Windows 11, 10 or 8.1. It connects up to five peripherals such as keyboards, mice, headsets, speakers or printers simultaneously. The adapter uses a USB interface and requires no driver installation on supported systems. Mac OS, Linux, game consoles and TVs are not supported.

Class 1 radio with extended antenna

Class 1 radio technology and an extra-long antenna provide an open-area range of up to 328ft or 100m. Bluetooth 5.3+EDR and dual-mode operation deliver low energy consumption and high speed. The 3Mbps transfer rate reduces efficiency loss from 2.4GHz interference. Physical obstructions and wireless congestion will reduce the practical distance.

Sustained multi-device throughput

Under continuous load the adapter maintains stable links for all five connected devices thanks to Bluetooth 5.3+EDR and BLE configuration. Anti-interference performance holds data rates steady during prolonged file transfers or audio streaming. The USB plug-and-play design keeps operation consistent without thermal throttling or driver reloads.

Highlights

  • Bluetooth 5.3 and EDR for faster, low-energy links
  • Class 1 radio plus long antenna reaches 328 ft in open areas
  • Driver-free USB setup works instantly on Windows 11, 10 and 8.1
  • Connects up to five peripherals such as mice, keyboards and headsets
  • Compact 3.74 by 0.67 by 4.29 inch adapter weighs 0.05 kg

Specifications

BrandTechkey
ModelBlack-5.3-1
ColorBlack
Weight0.05 kilograms

Questions about this item

How do I install the Techkey Black-5.3-1 Bluetooth 5.3 USB Adapter on Windows 11?

Insert the adapter into a free USB port on your desktop or laptop. Windows 11 will recognise the Bluetooth 5.3 dongle automatically without any driver download. The plug-and-play process finishes in seconds, then pair your mouse, keyboard or headphones from the Settings menu.

Does the Techkey Black-5.3-1 Bluetooth 5.3 USB Adapter need firmware updates or antenna maintenance?

No firmware updates are mentioned for this adapter. The external long-range antenna is fixed and has no moving parts, so no periodic adjustment is required. Keep the USB port and the adapter’s plastic housing free of dust for reliable contact.

What is the first limitation I will hit when streaming audio continuously through the Techkey Black-5.3-1 adapter?

The Bluetooth 5.3 link tops out at 3 Mbps EDR throughput. In a busy 2.4 GHz environment that ceiling is reached before the 100 m open-space range becomes a factor, so sustained high-bitrate audio may compress or stutter if interference is heavy.

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