NEC SP B-Series - Manual (Page 97)

System Specifications A-3
Read-Only Memory
Flash ROM

2 Mbit
Video Memory
Standard video memory

8 MB or 16 MB video memory on video board
Calendar Clock
Year/Month/Day/Hour/Minute/Second/.01 Second; maintained by battery
backup
Battery Type

Real Time Clock (RTC) battery
Input/Output Facilities
Integrated Industry-Standard Interfaces
T Parallel

bidirectional, ECP/EPP support; one 25-pin connector
T Serial

two high-speed RS-232C ports using 16C550-compatible
UARTs, support transfer rates up to 115.2 Kbits per second; 9-pin
connectors
T Universal Serial Bus (USB)

two USB ports, support two USB
peripherals directly to the system; with appropriate connector, each port
supports up to 127 daisy-chained devices; supports 12 megabits (Mbs)
per second
T Keyboard

PS/2-compatible, 6-pin connector (mini DIN)
T Mouse

PS/2 compatible, 6-pin connector (mini DIN)
T IDE

dual IDE channels

two fast IDE channels

CD-ROM drive and hard drive on separate channels

support for up to 33 MB/second 32-bit transfers on PCI bus

support for a total of four IDE devices; 40-pin connectors

support for fast PIO mode 3 and mode 4, multiword DMA2, Ultra
DMA33
T Diskette Drive

supports two devices, 34-pin connector