| R552
          
  | 
    
    
      | * Chipset : Intel 
        82437VX, 82438VX, 82371SB. | 
    
    
      | * Support Socket 
        7 for Intel Pentium CPU and other compatible CPUs. | 
    
    
      | * Supports 256K 
        Pipelined Burst SRAM in Second Level Cache, can be upgrade to 512K cache 
        sizes. | 
    
    
      * Supports 2 
        Banks of SIMMs, Four 72 pin SIMM Sockets or Two Bank of SDRAM DIMMs (Two 
        168 pin DIMM Sockets). 
        - The memory sizes are from 4MB to 128MB. 
        - Supports Fast Page Mode (FP) and Extended Data Output (EDO) DRAM. | 
    
    
      | * Four 16-bit ISA 
        and Four 32-bit PCI Master Mode slots. | 
    
    
      * Fast IDE 
        interface : 
        - Supports PIO and Bus Master IDE controller. 
        - Supports up to Mode 4 Timming. 
        - Supports Four IDE drivers in two channels. | 
    
    
      * Universal 
        Serial Bus Controller. 
        - Host / HUB Controller. 
        - Two USB Ports | 
    
    
      * On Board I/O 
        supports : 
        - 2 Serial Ports (16550 Fast UART compatible ). 
        - 1 Parallel Port ( ECP and EPP capabilities ) 
        - 1 Floppy Disk Controller ( Supports Two FD Drivers ) | 
    
    
      * BIOS supports : 
        - "Plug and Play" (PnP) function. 
        - Power management feature. | 
    
    
      | * ATX Form Factor 
        : 30.4cm x 24cm or 12" x 9", 4 Layers Board. |