Pphitoptech is on connectors: PJ-250TB, PJ-250AB. Quality is very good and wish can quote you.

Else connectors are also available.

 

Pphitoptech is on IC Socket, both with centre support or without are available.

2-382351-4, 2-382761-4

Conn DIP Socket SKT 32, 28 POS 2.54mm Solder ST Thru-Hole Tube

Etc