IBM have a full specs list for the forthcoming Pegasos 2 on their site. The site doesn't allow direct linking, so follow these instructions to see it for yourself:
Click here.
Enter Pegasos in the search gadget and click Start Search.
On the page that comes up, click on Functional Description 2/3rds down the page.
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For those lazy or who don't need the proof, here are the specs:
Pegasos II Specifications: MicroATX motherboard
Marvell Discovery II System Controller (MV64361)
VIA peripheral controller (VT8231)
CPU on daughter card Supports PowerPC CPUs from IBM and Motorola
DDR RAM PC 2100 / DDR266
2X Ethernet ports (1x1Gbit and 1x10/100Mb)
3 X Firewire
USB 1.1
2 X ATA 100
AC97 Audio (Line In / Line Out / Headphone Out) SPDIF Out
AGP x1 port
3 X PCI slots Riser connector for 1st PCI slot
Miscellaneous ports: Floppy Serial Parallel 2 X PS/2