8 Analog I / O + 2 main outs of monitoring, an i / o SPDIF, 1 I / O ADAT, an I / O word clock, 1 MIDI I / O.
2 superb pramplis on inputs 1 & 2 which can be used thanks to the outputs indpendamment pramp.
Several modes of operation:
mLAN> with PC, there are the 8 analog I / O or anal sex. + 7 and 8 in SPDIF or ADAT.
ADAT> without a PC uses analog to ADAT and ADAT to analog. Possibility to mix 8 ADAT inputs to outputs via the mixer Main out.
STANDALONE> without a PC lets you mix the entries on the main outs.

UTILIZATION

Unlike simeone.chris, I had no problem.
Fast installation (with drivers v1.1): we start the installation file, it is guided, then restart, the card is connected, and you're jou. The PatchBay is a little subtle understanding, but the history of rflexion 5 minutes (I think the PDF on the site of Presonus advise the above ...).
The only problem that I face are those of the connection: I chang d 2 Firewire cable again because of bad contacts ... (Provided the original is still, however, it)
Indeed, an external hard drive for example, is less sensitive to bad contacts being given that is not isochronous transmission as the Firestation.

GETTING STARTED

Again, I have not suffered the symptoms of simeone.chris.
a latency of 5 ms allows to run many VSTi MIDI in real time while recording 8 tracks of audio ... and this on a laptop (Win XP SP1 - 1.2 GHz Celeron Tualatin). I can go without ms 2 VSTi.
No problem of stability. It can be dyed and switch the card without problem (without restarting the PC), it is recognized in 5 seconds.
The drivers have been t day a few weeks ago (version 1.1) and can have tracks WDM, ASIO and others. It should also be aware that drivers are those of the Yamaha mLAN and do not dpendent Presonus who is only using the transmission protocol.

OVERALL OPINION

I use it since January and I am fully satisfied.
The sound of pramplis is beautiful (probably the same as the BlueTube).
The converters are high quality.
qualitprix excellent.
I do it again the same choice today.