The Attend 123A-21E00 is an M.2 (NGFF) horizontal connector with SMT mounting, gold flash plating, 67 pins, and a current rating of up to 0.5A. This connector is designed for multiple signal and power applications, including Ethernet, SATA, and PCI Express. It supports both single- and double-sided boards, as well as both card and box-style edge connectors. The connector’s 0.5A current rating and gold plating make it suitable for high-frequency applications, such as RFID readers, antennas, and Wi-Fi and Bluetooth transmission.