ASUS USB-BT500 Bluetooth 5.0 USB Adapter with Ultra Small Design, Backward Compatible with Bluetooth 2.1/3.x/4.x...

Installed on Windows 10 64bit OS. Definitely had to download/install the driver but that wasn't difficult, it prompted me to do it and I just had a few clicks and it was done. I have not noticed any lag issues, but I'm not using it for audio at this time so I can't rightly speak to that. File transfers are OK and it works great for mouse & keyboard. The rest of this won't apply to like 99% of people but I'm putting it here in case anyone encounters the one gotcha I experienced with this device, which was starting up the PC cold (from being turned off). It was taking too long after I installed this device. Windows did come up, but it sat at an empty screen for a couple minutes whereas this computer used to just blast open whenever I'd start it up. I messed around a while before I found something online about similar issues. The article I found suggested that even though my motherboard did not "have" bluetooth onboard, sometimes there is something buried in the BIOS (or UEFI) related to bluetooth, and apparently some mainboard manufacturers actually ship boards with bluetooth only disabled as some arcane marketing strategy to sell the boards at a lower price (??). My mainboard definitely wasn't supposed to come with bluetooth and I had no signs of any pre-existing Bluetooth devices in Device Manager, but sure enough I entered my BIOS at bootup and there were two bluetooth items listed, one was already disabled and the other (named something like "connectivity wifi/bluetooth") was enabled. I disabled it (this computer uses an ethernet cable, not wifi) and the PC boots very quickly again. I gotta think that was it, I DON'T think you want multiple bluetooth adapters enabled like that. Weird problem that only occurred on cold boot - Standard restarts weren't affected. Anyway, I could be the only one in the world who had that problem, and I'm enjoying the bluetooth now. I'd buy it again

This adapter Works Fine and was an easy way to add Bluetooth to an older PC that I built. At the time I built the PC, I didn't think BlueTooth was a necessity but more & more peripherals require it now.

The ASUS USB-BT400 Bluetooth Adapter is a versatile and reliable solution to upgrade your PC or laptop with Bluetooth connectivity. Whether you want to connect wireless peripherals, transfer files, or simply enjoy the convenience of Bluetooth, this tiny dongle has you covered. One of the standout features of this Bluetooth adapter is its ease of use. It's a 'plug and play' device, which means that it's incredibly simple to set up on Windows 10/8/7/XP. You just plug it into an available USB port, and your computer recognizes it automatically. This quick and hassle-free installation is a big plus for users who want to avoid complicated setups. The adapter supports a wide range of Bluetooth devices, including printers, phones, headsets, speakers, keyboards, and controllers. This versatility makes it a valuable addition to your PC, enabling you to connect various peripherals and accessories without the need for multiple adapters. Despite its compact size, the ASUS USB-BT400 delivers reliable and stable Bluetooth connections. Whether you're streaming audio to wireless speakers or enjoying lag-free gaming with a Bluetooth controller, this dongle ensures a seamless experience. ASUS is known for its quality and durability, and this adapter is no exception. It's built to last, and you can trust it to provide long-term Bluetooth connectivity without issues. The sleek black design of the dongle blends well with most computer setups, and its small size means it won't block adjacent USB ports or get in the way. In conclusion, the ASUS USB-BT400 Bluetooth Adapter is a cost-effective and efficient solution for adding Bluetooth connectivity to your PC or laptop. Its 'plug and play' setup, compatibility with various devices, and reliable performance make it an excellent choice for users who want to enjoy the benefits of Bluetooth without the fuss."

The ASUS USB-BT500 Bluetooth 5.0 USB Adapter has been a valuable addition to my tech setup, and here's why: Ultra Small Design: This adapter's ultra-compact design is a standout feature. It's incredibly small, almost flush with the USB port, and doesn't obstruct adjacent ports, making it perfect for laptops and PCs where USB space is limited. Seamless Connectivity: The Bluetooth 5.0 technology ensures stable and efficient connections. I've experienced consistent and fast pairing with various devices, including headphones, speakers, and smartphones. Plug-and-Play: Setting up the ASUS USB-BT500 is a breeze. It's a true plug-and-play device, so there's no need for complex installations or driver updates. Simply plug it in, and it's ready to use. Wide Compatibility: I appreciate its backward compatibility, allowing it to work with older Bluetooth versions as well. This versatility ensures it can connect with a wide range of devices. Reliable Range: Despite its small size, the range of this adapter is impressive. I can move around my room without losing connectivity to my audio devices. Stylish Look: The sleek and modern design blends seamlessly with my devices. It's not an eyesore and actually adds a touch of style. Affordable: Considering its performance and features, the ASUS USB-BT500 is competitively priced. It offers great value for upgrading non-Bluetooth devices.