• MCST 1991ВГ2АЯ (1991VG2AY)
• MCST 1991ВГ2БЯ (1991VG2BY)
• MCST 1991ВГ2Я
• MCST ТВГИ.431291.002

The KPI-2 is compatible with the Elbrus-8CV, Elbrus-8C, Elbrus-1C+, R2000 and other processors

• 1991ВГ2АЯ (1991VG2AY) — with a clock frequency of up to 500 MHz
• 1991ВГ2БЯ (1991VG2BY) — with a clock frequency of up to 450 MHz

MCST KPI-2 Specifications

• Clock frequency: 500 MHz in operation, 250 MHz in idle mode (1991VG2AY), 450 MHz in operation, 233 MHz in idle mode (1991VG2BY)
• Channel to the processor: 16 Gbps (8 GB/s downstream + 8 GB/s upstream)
• PCI controllers: 1 PCI-E 2.0 bus with 16 lanes (1×16 or 2×8), 1 PCI-E 2.0 bus with 4 lanes (1×4 or 2×2 or 4×1), 1 PCI 2.0 bus, 32 bit, 33/66 MHz, up to 7 bus master devices
• Ethernet controllers: 3 1000Base-T (802.3ab) ports with PTP v2 support
• ATA controllers: 8 SATA 3.0 ports (6 Gbps), 1 port for 2 IDE ATA devices (100 MB/s)
• USB controllers: 8 USB 2.0 ports (480 Mbps)
• HD Audio Controllers: 5.1-channel sound, 8-32 bits, 6-192 kHz
• LPC controllers: 2 RS-232/485 ports (115.2 kbps), 1 IEEE 1284 port with DMA support (2.5 MB/s), 4 I²C channels, 1 MHz, 1 SPI bus for 4 devices, 50 MHz, 32 GPIO inputs/outputs
• Event handling: 16+24 inputs on the external interrupt controller, 1 system timer, 1 watchdog timer, 32 bits, 10 MHz, 3 lines for receiving and issuing time-based interrupts