The High Speed Adapter, for the DIN_USR connector on the Digital Discovery, is an alternative to the 2X16 flywire assembly. It provides access for 24 High Speed Logic Probes and allows increased sample rates for up 800MS/s on the Digital Discovery.
The adapter is not keyed, and both orientations can be used as the twisted wires are not color-coded.

The High Speed Logic Probes come in a pack of 16 twisted cables. Each cable has a GND (black) wire twisted to a DIN_USR (colored) wire.
The wire connects to the High Speed Adapter via a 2-pin female header, and two 1-pin female connectors to the device under test.
A 100Ω resistor is embedded in the signal wire on the end closest to the device under test. All GND wires should be connected to
ground of the device under test.

▶ Datasheet