The Standard SD Express Memory Card Test Adapters support PCIe® 16 GT/s (Gen4) and PCIe® 8 GT/s (Gen3) Interface Compliance Program testing for SD8.0 and SD7.1. Minimal crosstalk, short trace lengths. The Micro SD Express Memory Card Test Adapters supports PCIe® 8 GT/s (Gen3) Interface Compliance Program testing for SD7.1. Minimal crosstalk, short trace lengths. They all support SDHC, SDXC, and SDUC operation modes Data collection via Lab Standard SSMP Test Cables and hard gold mating surface allow for high cycle count insertions and reliable performance.