This lot includes 6 PCI-E 1X to 16X graphics card risers, 4 of which are PCE164P-N03 Ver 007 model numbers. These risers are compatible with universal brands and have external interfaces via USB 3.0. Each unit has 1 port and is designed for use with PCI Express x1 and PCI Express x16 compatible ports. The lot also includes 2 additional risers with different model numbers, making it versatile for various computer setups. Perfect for expanding graphics card capabilities in a computer system. These came from a friend that used to crypto mine. He changed his focus to other things. There are 4 of the part number listed in the title, then (1) PCE164P-N007 Ver 007A & (1) simply marked Ver.006C. Mine today!