What this means

The IEEE assigned the MA-L block 14F28E to ShenYang ZhongKe-Allwin 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 14:F2:8E, it is ShenYang ZhongKe-Allwin Technology Co.LTD hardware.