SHENZHEN MEI XIN ELECTRONICS CO. LTD. Walram is one of the earliest manufacture of ddr sdram module , SSD , in Shenzhen ,China. we can manufacture most of the electronics and computer products , such ddr memory modules , SSD, all in one pc , motherboard, notebook . Our Advantage service : OEM service 1. we have 11 years experience of oem for our customers .4 SMT line , 4 edging testing line . 2.OEM service for sdram ddr2 memory module ,ddr3 memory module , ddr4 memory module3. OEM service for 2.5 inch SSD, M.2 NGFF SSD.M.2 NVME SSD 4. OEM service for MICRO SD CARD , TF CARD5.OEM service for USB Flash driver ODM service we can design for your oem products , free of charge is MOQ is met . 1.free design for logo ,sticker and label .2, free design for retails packing 3, design base on sample Technical support :1. we have software , hardware, RMA engineer in this industrial for many years , we can offer all the techinical support including , manufacture , test, repare . ect After sale service products warranty will be 1-3 years