Sorry to dig an almost 3 years old post...
Since a few weeks, I have been in possession of an Alphabook, with a yellow block at the end of the power cord. The accessories which came with it (bag, floppies, documentation, SCSI terminators) match those from this auction; it might be the very same machine, unless all Alphabook came with them (but given there was a Sun DD50 SCSI-1 terminator among the accessories, this is very unlikely).
This is quite an odd machine. It has the same form factor as a Tadpole SPARCbook but completely different connectors, and a dock giving access to more; but the LCD, the 2x16 information panel, the keyboard, the disk and PCMCIA slots are the same. The two memory slots in the battery compartment are the same, as well. This machine having 128MB, it has two 64MB SIMMs which are actually two 32MB SIMMs glued together...
R3000 (alas, dead) R4000
x4 R4400 R4400
x2 R8000 R10000 R4000PC R4000SC R4400SC R4600 R5000SC R5000
x3 RM7000 2xR10000 R12000 2xR12000
- 2x2xR10000 R16000 4xR16000
among more than 150 machines : Apollo, Data General, Digital, HP, IBM, MIPS before SGI
, Motorola, NeXT, SGI, Solbourne, Sun...