Ironwood Electronics continues to design and manufacture new innovative surface mount (SMT) Grypper 
Source: Ironwood Electronicssockets. Ironwood has a complete line of NAND, controller and buffer sockets used in solid state drives, cards and modules.
The zero footprint (Grypper) sockets are available for the NAND and open NAND flash interface (ONFi) standard and also sockets for the new 3D XPoint devices. The socket is surface mounted using standard soldering methods to the same location on the PCB. The Grypper requires no lid, and the device simply snaps into the socket.
The Grypper contacts are only 1.5 mm to 2.2 mm long, and the electrical performance is superior with S21 at -1 bd to 40 GHz. Grypper sockets are the same size as the device, allowing the user to fit them into any of the SSD form factors: PCI, SATA, mSATA, M.2 or U.2. The Grypper sockets are also ideal for higher speed interfaces such as NVMe over PCI Express and 3d XPoint.
