KEL USL20 series is 0.4mm pitch connector originally from KEL JAPAN. It has 20pin, 30pin, 40pin with micro coaxial cable type 42AWG. Pin Assignment can be 1-1 crossing or 1-N straight. Length can be customized as requested.

About the Original Kel Usl20 30ss 063 CH Micro Coax Lvds Cable Assembly
1. Cable length: 15CM or As Requested
2. Connector: KEL USL20 series
3. Shielded Part: Acetate Tape or Teflon Flex Tape
4: 100% electricity performance testing

Insulator material Glass-filled LCP (UL94V-0), Black
Contact material Copper alloy
Contact plating Gold over Nickel
Shell material Copper alloy
Shell plating Tin copper over Nickel
IDC cover material [USL20] Glass-filled LCP(UL94V-0),White
Current rating 0.25A per contact
Contact resistance 100mΩ max.
Dielectric withstanding voltage 200V AC for 1 minute
Insulation resistance 100MΩ min. at 250V DC
Operating Temperature -40℃ to +85℃
Recommended cable #42 AWG Micro coaxial cables

Please let us know your ordering number like above. That's should be enough for the KEL micro coax cable assemblies

USL Series of I.D.C. connectors provides support for 0.4-mm pitch, ultra-fine coaxial cables (#42 AWG) and makes full use of KEL`s technical expertise in batch assembly for the purpose of cable connection.

The connectors of this series have a pitch of 0.4 mm and a low mounting height of 1.0 mm.
When compared with our current SSL Series of connectors for 0.5-mm pitch, ultra-fine coaxial cables, the USL Series achieves a major reduction of approximately 50% in terms of coupled volume, thus contributing greatly to weight reduction and device miniaturization.
This product features a right-angle type connector on the board side and a straight type on the cable side; furthermore, 30- and 40-contact variations are currently available.