DSA Double shot ABS. Made by Signature Plastics. The base set will cover most, if not all, common 40% boards and numpads/macropads. The compatibility kit provides support for common 60/65% boards.
Only a very small number of the compatibility kits are left. Previously it was noted here that base sets would be available in July of 2019. This is no longer the case. Instead Honeywell will be coming back in the revived DSS profile. Likely ETA is August of 2019. Apologies for the change of plans.