The 20021121-00006C1LF is an unshrouded vertical surface-mount (SMT) board-to-board connector from the Minitek127® series, designed for compact interconnections with a fine pitch of 1.27mm and position ranges from 4 to 100. It features a black plastic housing (UL94V-0) with copper alloy terminals and supports multiple plating options including gold flash, 0.25µm gold, and 0.76µm gold for enhanced reliability and corrosion resistance. The connector delivers a maximum current rating of 1A per contact, insulation resistance of 1000MO minimum, and operates reliably across a temperature range of -55°C to +125°C with 100 mating cycles durability. This connector is ideal for space-constrained applications in industrial robots, switches, smart devices, and server/storage systems, offering superior reliability and compatibility with PCI Express Gen 3 standards.