A connectivity sled for docking and undocking a mobile computer and a payment device, comprises a first adapter plate assembly directly coupled to the payment device, including a configuration that couples to a surface of the payment device is exposes all ports, function keys, and interfaces of the payment device and at least one magnet. The sled further comprising a second adapter plate assembly directly coupled to the mobile computer, including a first portion that couples to a top surface of the mobile computer device, and at least one magnet that magnetically couples to the at least one magnet of the first adapter plate assembly.