2 midi in, midi out four, routing a total of 64 programmable patches, and especially solid as a cargo Panameña. However I sold the card internal sounds (cause duplicate an RD-500 the era) and I absolutely do not regret it.
It was the era of expanders all is, sets of scne type 747 with cables everywhere, might as well say that the concentration of control and MIDI ports in one machine was a point allchant ... and then its price ... in 7000frs?

UTILIZATION

A keyboard in the end quite soft but enjoyable for the synthse, depreciation and aftertouch CONTRL offer a sense quite unique .. I reconnatrait miles from the keyboard blindfolded.
The config is logical and APRS several years of practice, programming my patches as quickly became clear. Say anything about the possibilities of MIDI CONTRL protocol, although the luxury to be able t bneficier of the two TO rglages unique for each patch, for example, instead of a rglage overall, mainly for the exclusive, but ... REALLY fun to set the sysex today?
Another ngatif: scne for a keyboard, why Roland had never thought less clear in the pav between digital and key for at least the scnes a bit dark.

I would put 10 because it is a must for many years regarding the MIDI controllers ... oh yes mr Roland: the design is nice, but who had this ide to a rear edge so steep? this is not the A70 too heavy, but with the rear shall adopt, the cover 50 meters arm's keyboard into the air and on the edge hanging back with the fingers a nylon ...

OVERALL OPINION

For over 12 years that this keyboard follows me everywhere, and scne studio, and through time in a state copy. Unbreakable you say? no, but almost!
I would do if this choice? ... I think mine replaced by another of the same brand / same MODEL (used) ds it will begin to want to stay for the vagaries home