What this means

The IEEE assigned the MA-M block 50A4D08 to XinLian'AnBao(Beijing)Technology Co.,LTD.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 50:A4:D0:8, it is XinLian'AnBao(Beijing)Technology Co.,LTD. hardware.