Which of the following are features of DC908?

The DC908’s features, per HCSA-Sales-Transmission & Access, include:

Co-deployed with IT devices (A): Supports rack integration with IT equipment.

Front air inlet and rear air outlet (C): Matches data center cooling standards.

AC/HVDC/DC power supply (D): Offers flexible power options (AC, high-voltage DC, DC).

19-inch ETSI rack installation (B): While compatible with 19-inch racks, "ETSI" typically implies European telecom standards (e.g., 21-inch), and DC908’s primary focus is 19-inch IT racks; this is not a highlighted feature.

Thus, A, C, and D are correct.