NTNOTEn (ニューテック) 110-pin extension bus of old 98 notes (PC-9801N, NV, NS, NS / E, NC, NS / T, NS / L) SCSI interface / FDD interface complex BOX. SCSI connector Only HDD can be connected to. MS-DOS ver.3.3B or later, MS-Windows (think from the release date of this unit I think) corresponding. When starting up the system from an external device connected to this unit, use a laptop PC On the main unit side, specify "Standard" for the system startup device. Resume function not supported. basic specifications  BIOS-ROM: D6000h-F7FFFh  DISK I / O: 80h, 82h  DMA channel: Fixed to CH 0  Interrupt level: Fixed to INT 2 (IRQ 6)  SCSI ID: 7 fixed  Current consumption: 200mA (MAX)  Operating temperature: 10 to 35 ° C  Humidity: 20 to 80% There is a main CPU selection switch (V30 / 386) beside the SCSI connector.Also on the back mode There is a switch for setting. Mode setting switch: EMM 386.Specification of type of SYS  F mode ■ NEC version MS-DOS ver.3.3 C / D MSS 386.When using SYS  C mode ■ NEC version MS-DOS ver. 5.0 / MS-Windows MSS 386.When using SYS ※ There is no mode setting switch in the old lot.