A resposta é a versão correta do driver, baixada do Myria-de Git.
git clone https://github.com/Myria-de/mt7610u_wifi_sta_v3002_dpo_20130916.git
Nesta versão foi adicionado suporte a muitos dispositivos neste tipo de chip (incluindo o ASUS USB-AC51).
USB_DEVICE_ID rtusb_dev_id[] = {
{USB_DEVICE(0x148F,0x7610)}, /* MT7610U Ralink VID */
{USB_DEVICE(0x0E8D,0x7610)}, /* MT7610U MediaTek VID / Sabrent NTWLAC */
{USB_DEVICE(0x13B1,0x003E)}, /* Cisco Linksys AE6000 */
{USB_DEVICE(0x7392,0xA711)}, /* Edimax 7711ULC/7711MAC */
{USB_DEVICE(0x7392,0xB711)}, /* Elecom WDC-433SU2M */
{USB_DEVICE(0x148F,0x761A)}, /* TP-LINK Archer T2UH */
{USB_DEVICE(0x148F,0x760A)}, /* TP-LINK */
{USB_DEVICE(0x0B05,0x17D1)}, /* ASUS USB-AC51 */
{USB_DEVICE(0x0B05,0x17DB)}, /* ASUS USB-AC50 */
{USB_DEVICE(0x0DF6,0x0075)}, /* Edimax EW-7811UTC AC600 / Sitecom WLA-3100 */
{USB_DEVICE(0x2001,0x3D02)}, /* D-Link DWA-171 rev B1 */
{USB_DEVICE(0x0586,0x3425)}, /* ZyXEL NWD6505 */
{USB_DEVICE(0x07B8,0x7610)}, /* AboCom AU7212 */
{USB_DEVICE(0x04BB,0x0951)}, /* IO DATA WN-AC433UK */
{USB_DEVICE(0x057C,0x8502)}, /* AVM FRITZ!WLAN USB Stick AC 430 */
{USB_DEVICE(0x293C,0x5702)}, /* Comcast Xfinity KXW02AAA */
{USB_DEVICE(0x2019,0xAB31)}, /* Planex GW-450D/GW-450D-KATANA */
{USB_DEVICE(0x20F4,0x806B)}, /* TRENDnet TEW-806UBH AC600 */