GuliKit’s tiny USB dongle lets you connect your PS5 controller to your Switch 2
Source: The Verge
8BitDo USB Adapter 2
Dongles have a well‑earned reputation for being a nuisance—often costly and annoying to deal with. For gamers, however, there’s one worth recommending: 8BitDo’s USB Adapter 2 (about $20). It lets you wirelessly link controllers to the Switch 2 that would otherwise be unsupported, such as the Sony DualSense (with rumble and motion controls), Microsoft’s latest Xbox gamepads, and more. You can plug the adapter into the Switch 2’s dock or use a USB‑A‑to‑USB‑C adapter to connect it directly to the console.
It’s a great way to save money by using a controller you already own instead of buying a new one.