Q Strip QTS High-Speed Ground Plane Headers Samtec Q Strip QTS High-Speed Ground Plane Headers feature a 0.635mm pitch, a 285VAC voltage rating, and current rating of 1.8A per pin. The QTS series is an Extended Life Product (E.L.P.™) and is compatible with UMPT/UMPS for flexible two-piece power/signal solutions. These modules provide high-speed channel performance and up to 250 positions with 5mm to 16mm stack heights. Samtec Q Strip QTS High-Speed Ground Plane Headers operate in the -55°C to +125°C temperature range.