The RME DTOX-16 breakout panels are the perfect rack solutions for interconnecting multichannel XLRs with the common D-sub connector format.
Three different versions are available: DTOX-16 I, DTOX-16 O and DTOX-16 I/O. DTOX-16 connects up to 16 XLR inputs or outputs (XLR Neutrik connectors) with two D-sub 25-pin connectors.

DTOX-16 I

16 x XLR Input 2 x D-sub

DTOX-16 I connects 16 XLR inputs to two D-sub 25-pin connectors (channels 1-8 and channels 9-16).
The breakout panel supports all interfaces using analog 25-pin D-sub inputs as well as the following RME interfaces:
M-32 AD, M-16 AD.

DTOX-16 O

16 x XLR Output 2 x D-sub

DTOX-16 O connects 16 XLR outputs to two D-sub 25-pin connectors (channels 1-8 and channels 9-16).
The breakout panel supports all interfaces using an analog 25-pin D-sub output as well as the following RME interfaces:
M-32 DA, M-16 DA.

DTOX-16 I/O

8 x XLR Input > D-sub and 8 x XLR Output > D-sub

DTOX-16 I/O connects 8 XLR inputs to a D-sub 25-pin connector and 8 XLR outputs to another D-sub 25-pin connector.
The breakout panel supports all interfaces using an analog 25-pin D-sub I/O as well as the following RME interfaces:
ADI-8 QS, ADI-8 DS Mk III, M-32 AD, M-32 DA, M-16 AD, M-16 DA.