Marconi SCP-P5-266 Pentium 266 MHz- 64 MB DRAM Switch Control Processor. Bought this off ebay for set of two boards just to get the pentium MMX 266 processors, price is right.
But has lot of goodies to reuse from these high quality boards including low profile finned heatsinks, regulators etc. Based on TX chipset and odd looking southbridge by Intel, not BGA. And pair of 4 characters LED matrix modules, etc.
Assuming the plug in interface is not PCI standard and no way to bring out PS/2 connections and no way to hook up ATA as it lacks the connectors.
Cheers,
Great Northern aka Canada.