High density mounting: Space saving design that has a minimum connector width, yet still retains a sufficient vacuum area for easy pick-and-place mounting; Minimum width : 3.38mm. Multiple stack height : In addition to space saving design, stack are available and versatility to any application. Stack : 1.5mm, 2.0mm, 2.5mm,3.0mm, 3.5mm, and 4.0mm. High contact reliability: Despite small stature and low , the contacts deliver strong contact forces and an effective mating length of 0.45mm on the 1.5mm stacking height. This connector utilizes a locking system that prevents accidental unmating issues and emits a clear tactile click to that mating has been completed. -aligning range The use of guide ribs allows 0.33mm of selfalignment on this connector. Reinforced structure with shock absorbing ribs: Both sides of the connector have been reinforced with the addition of shock absorbing ribs. Solder wicking prevention: -plated barriers were added to the contact areas from potential solder wicking. Contamination resistant design: When mated, the connector 's design covers the contacts which help to keep dust and other debris from the contacts. The leads are to the connector housing which also helps to prevent shorts caused by debris on the exposed contacts. High speed signal with noise prevention: The shielded type can support high speed signaltransmissions with noise prevention. Type: B Colour: black Material: metal + plastic Package Contents: 1 * Suitable for computing module Compute module 4 CM4 socket DF40C-100DS-0.4v Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.