TP-Link UB400 Nano USB Bluetooth 4.0 Adapter
Overview
The TP-Link UB400 is a compact Bluetooth 4.0 adapter that solves a specific integration problem: adding Bluetooth wireless capability to fixed workstations, office desktops, and industrial computers that lack native Bluetooth hardware. The nano form factor—roughly the size of a USB stick—fits into a rear or side USB port without protruding or interfering with adjacent connectors, making it practical for tight cable runs or monitor-mounted installations.
Deploy the UB400 when you need to pair wireless peripherals (mobile devices, wireless headsets, Bluetooth-enabled sensors, biometric readers, or inventory scanners) to a system without replacing the host computer or modifying its motherboard. USB 2.0 connection, no external power required—the adapter draws current directly from the USB bus.
Compatibility
The UB400 connects to any Windows, macOS, or Linux system with an available USB 2.0 port. It supports standard Bluetooth 4.0 profiles, enabling pairing with any Bluetooth 4.0-compliant device: smartphones, tablets, wireless controllers, asset-tracking tags, or fixed sensors. Before deployment, verify that your target operating system includes kernel-level or vendor-supplied driver support for Bluetooth 4.0 adapters; legacy systems (pre-2012 Windows XP, very old Ubuntu builds) may require manual driver installation from TP-Link's support site or a third-party Bluetooth stack.
For systems requiring Bluetooth 5.0 or higher—extended range, lower latency, or improved coexistence in crowded 2.4 GHz RF environments—evaluate a newer Bluetooth 5.x adapter from the TP-Link accessory portfolio instead.
Installation Notes
Insert the adapter into any available USB 2.0 port. Allow 10–30 seconds for the host OS to detect and enumerate the device. Pair wireless peripherals via your operating system's Bluetooth settings menu. Keep the adapter at least 30 cm (approximately 12 inches) from metal enclosures, RF emitters, or 5 GHz wireless access points to minimize interference with the 2.4 GHz Bluetooth band where this adapter operates.
