You can ask Michael B at E3B via e-mail if the Delfina would work with his most excellent Deneb card. I'm planning on attaching my MP3@64 to my Deneb card's clock port & then feeding the output of the MP3@64 into my P-IV's Concierto's module (I've got all 3 daughter cards for the P-IV). It's a shame that the planned MP3 daughter board never became a reality. I've also got the Elbox FastATA 4000 Z3 card, a CatWeasel on the IDE cable, a Vortex 50 MHz 486 card with the math co-processor & the optional FDC chip w/16 megs of RAM, & the Monitor Master plugged into the back of that card with an EISA video card & an EISA Ethernet card, too. I'm going to also install the GVP-M 4060DT 68060 accelerator card w/128 megs of RAM I bought from Software Hut with a Fast SCSI-2 cable that Michael B of E3B custom made for the GVP-M 4060DT. I've got an EIDE DVD burner sitting in front in the 5.25" bay & a 3.5" multiple-card reader sitting in the front just under the A4000's floppy drive that's connected to the Deneb card.