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Tiny black USB Bluetooth 5.3 dongle with a low-profile plastic body

Hitoor

Hitoor Z01#Q2521_B Bluetooth 5.3 USB adapter

SKU CH-4MSF-2S2WZ

A USB Bluetooth 5.3 adapter adding 3 Mbps wireless connectivity for keyboards, mice, headsets and file transfer on Windows 11, 10 and 8.1 with plug-and-play setup and a 10–20 m range

  • TypeBluetooth Adapter
  • Bluetooth 5.3 delivers 3 Mbps speed for faster file transfers
  • Realtek chip ensures stable dual-mode connections with lower power draw
  • Plug-and-play on Windows 11, 10 and 8.1 without driver installation
  • Up to 20 m range keeps peripherals linked across the room
  • 24-bit CRC and adaptive hopping reduce 2.4 GHz interference

What this adapter adds to a PC

The Hitoor Z01#Q2521_B brings Bluetooth 5.3 to desktops and laptops that lack it. It uses a Realtek chip that supports dual-mode transmission and backward compatibility with Bluetooth 5.0, 4.2, 4.1, 4.0, 2.1 and 2.0. Windows 11, 10 and 8.1 work without extra drivers, while Windows 7 may need the file supplied on the CD or at the provided URL. Mac OS, Linux, consoles and car stereos are not supported.

Range, latency and power draw

The dongle reaches 10 to 20 metres in open space and runs at a 3 Mbps data rate. Adaptive frequency hopping and 24-bit CRC reduce interference in the 2.4 GHz band. Ultra-low latency and intelligent sleep/wake functions keep power consumption low during normal use with keyboards, mice, headsets or speakers.

Included driver media and setup help

A small CD ships in the box with the Windows 7 driver package; the same file is also hosted at the Dropbox link quoted by the supplier. On Windows 8.1, 10 and 11 the adapter is plug-and-play, so the disc is only needed for older systems. No configuration software or management utility is bundled.

Highlights

  • Bluetooth 5.3 delivers 3 Mbps speed for faster file transfers
  • Realtek chip ensures stable dual-mode connections with lower power draw
  • Plug-and-play on Windows 11, 10 and 8.1 without driver installation
  • Up to 20 m range keeps peripherals linked across the room
  • 24-bit CRC and adaptive hopping reduce 2.4 GHz interference

Specifications

BrandHitoor
ModelZ01#Q2521_B
TypeBluetooth Adapter

Questions about this item

How do I install the Z01#Q2521_B on Windows 11 and what step do people miss?

Plug the adapter into a USB port; Windows 11 installs the driver automatically. The step people miss is leaving it plugged in long enough for the driver to finish before pairing devices.

What maintenance or replacement will the Realtek 5.3 chip need over time?

No user-serviceable parts exist. If the chip or USB connector fails after extended use, the whole adapter is replaced.

At what range does the 2.4 GHz signal drop first during sustained file transfers?

The supplier rates an unobstructed range of 10-20 metres; walls or heavy 2.4 GHz traffic will reduce the usable distance before the 3 Mbps link becomes unstable.

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