Shenzhen Sintech Electronic. Was Founded in Jan,2005 .We are professional manufacturer of mac SSD upgrade card,m.2 SATA/nVME,mSATA, SATA,IDE,ZIF,mini PCIe SATA for UX31/ultra book,U.2 SFF-8639,SFF-8611,CF,CFexpress Card,CFast Card,Micro SD/SDHC/SDXC,SD express,USB 3.0 Type C series, We also provide PCIe riser Cables and extension board Card.