Mini pci-express socket SpecificationsMINI PCI EXPRESS Card 52Pin SMT 1,Materials:LCP,Gold-plated copper 2,Certification:ROHS,UL,ISO,CE 3,Type:Female 4,Height:4.0/5.2/5.6/6.75/8.0/9.0/11mm Housnig Material: LCP UL94V-0 ROHSContact Material: Phosphor BronzeSolder Materia: SPCCContact Plated: Gold Plating in the contact area, And Tin Plating in the solder tail area,With 50u min Nickel under plating ...