HG643-TW yog tsim los ua HGU (Home Gateway Unit) hauv cov kev daws teeb meem FTTH sib txawv;tus cab kuj-chav FTTH daim ntawv thov muab cov ntaub ntawv kev pabcuam nkag.Nws yog raws li paub tab thiab ruaj khov, tus nqi siv tau XPON thev naus laus zis.Nws tuaj yeem hloov tau nrog EPON thiab GPON hom thaum nws nkag mus rau EPON OLT lossis GPON OLT.Nws txais kev ntseeg siab, kev tswj xyuas yooj yim, kev teeb tsa yooj yooj yim thiab kev pabcuam zoo (QoS) lav kom ua tau raws li kev ua haujlwm ntawm lub module ntawm Tuam Tshoj Telecom EPON CTC3.0.Nws tau ua raws li IEEE802.11n STD, txais nrog 2 × 2 MIMO, tus nqi siab tshaj txog 300Mbps.Nws tau ua raws li kev cai lij choj xws li ITU-T G.984.x thiab IEEE802.3ah.Nws yog tsim los ntawm ZTE chipset 279127.