030: 30 pins per row, for a total of 60 positions (since it's a double-row connector). 01: Lead Style, with a height above board of .1280" [3.25 mm]. L: Latching Option. D: Double row. A: Alignment Pins. K: Polyimide Film Pick & Place Pad. TR: Tape & Reel packaging. Samtec Q Strip® High-Speed Ground Plane Socket Strip.