Keystone - Inserts definition: A keystone module is a standardized snap-in package for mounting a variety of low-voltage electrical jacks or optical connectors into a keys... Keystone - Inserts Product Listing: 119259,119274,119269,119275,144588.Connectors, Interconnects type:Circular Connectors(4156894),Barrel - Audio Connectors(708215),Rectangular Connectors - Headers, Male Pins(575678),Card Edge Connectors - Edgeboard Connectors(554558),D-Sub Connectors(512402) .Keystone - Inserts has 165 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Anli.