https://www.yubico.com/products/yubikey-hardware/ https://www.yubico.com/products/yubikey-hardware/ It's a little pricier, but the Neo-N here will sit in a USB

https://www.yubico.com/products/yubikey-hardware/ https://www.yubico.com/products/yubikey-hardware/ It's a little pricier, but the Neo-N here will sit in a USB port and be more or less flush with the side.