Rackmount 1U 4-channel recorder, is there such thing?

[Welkin]

I need a solid state recorder that would fit into a single rack space, record four channels (or more) simultaneously and have an AES/EBU (or SPDIF) input and two mic preamps. Is there anything like that? It would be nice if the unit cost a grand or less. The Tascam HD-1R is pretty much perfect except that it only records two channels. The Edirol R44 is also pretty close except that it doesn't fit into a rack and I'm not sure if I'd be comfortable with a device made by Edirol. The Sound Devices 744T is too expensive and has connectors all over the unit.

My goal is to fit the recorder into a 2U rack with my API A2D to have a high quality four channel recording setup in a single case and without the need for a computer. I'm currently using the A2D with MOTU 828mk2 and a laptop but I'd like to get rid of the laptop when recording.