Specifications:

top board of BGA adapters
ZIF socket accepts many variations of BGA packages, that differ in ball diameter, ball height and body thickness.
The picture at Accepted package(s) section shows the range of all dimensions of BGA packages, which are accepted by this BGA-Top board.
operating (mechanical) warranty of ZIF socket - 500,000 actuations
made in Slovakia
Ord. no.        70-3037
Socket        ZIF BGA80 (depopulated array of (64) spring probes), ClamShell type
Connection to BGA-Bottom-X        4x25 pins, square, 0.6x0.6mm