This Module is currently available.
MIDI Expander for Arpeggiator 2013
This gives MIDI Connectivity to the 2013 as well as 8 clock outputs
http://flame.fortschritt-musik.de/pdf/Handbuch_Flame_ARP2013_module_v101_eng.pdf
1 Users are observing this
Flame X-2013 Expander$49.99
These merchants probably sell this module. Huh?
