SPARCstation 10

Announced in May 1992, it was Sun's first desktop multiprocessor (being housed in a pizza box form factor case).

Each MBus slot can contain single or dual SPARC CPU modules, permitting expansion to up to four CPUs.

SuperSPARC modules with external cache could be mixed, even with different clock speeds, but this was not a Sun-supported configuration.

All SPARCstation 10s seem to have the VSIMM slots, a cutout in the case and solder pads for the SX's 13W3 connector.

The ZX is a 24-bit card with hardware-accelerated 3D operations, offering high speeds and resolutions, however, it's poorly supported, takes up two SBus slots, and runs extremely hot.

Its faster cousin, the Turbo ZX, requires a fan card, taking up all four SBus slots.

The SPARCstation 10 uses a battery-backed NVRAM module to hold data about the system, such as the host ID (serial number) and MAC address.