What this means

The IEEE assigned the MA-M block C4A10E2 to Wistron InfoComn (Kunshan) 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 C4:A1:0E:2, it is Wistron InfoComn (Kunshan) Co., Ltd. hardware.