WESTERN DIGITAL HARD DISK CONTROLLERS XT, MFM: WD1002A-WX1, WDXT-GEN, WD1004A-WX1, WDXT-GEN2. XT, RLL: WD1002-27X, WD1002A-27X, WD1004-27X, WD1004A-27X, WD1002A-FOX. AT, MFM, NO FLOPPY: WD1003-WAH, WD1003V-MM1, WD1006-WAH, WD1006V-MM1. AT, MFM, FLOPPY: WD1003-WA2, WD1003A-WA2, WD1003V-MM2, WD1006V-MM2. AT, RLL, NO FLOPPY: WD1003-RAH, WD1003V-SR1, WD1006-RAH, WD1006V-SR1. AT, RLL, FLOPPY: WD1003-RA2, WD1003V-SR2, WD1006V-SR2. AT, ESDI, NO FLOPPY: WD1007A-WAH, WD1007V-SE1/ME1. AT, ESDI, FLOPPY: WD1007A-WA2, WD1007V-SE2/ME2, WD1007A-WA4. AT, SCSI: 7000-ASC, 7000-FASST2, WDATXT-FASST. PS/2 Microchannel: WD1006V-MC1, WD1007V-MC1. XT HARD DISK CONTROLLERS FOR MFM HARD DISK DRIVES. Reference NOTE 1. WD1002A-WX1, feature F300R - Half-slot size hard disk controller card with an ST506/ST412 interface. It supports 2 MFM drives with up to 16 heads and 1024 cylinders and is jumper configurable for secondary addressing and default drive tables. Built in ROM BIOS supports non-standard drive types, virtual drive formatting, dual drive operation, bad track formatting and dynamic formatting. Features a power connector for filecard applications and will also operate in AT systems. Will be unavailable from WD after March, 1989. Reference NOTE 2. WDXT-GEN, feature F300R - Half-slot size hard disk controller card with an ST506/ST412 interface. It supports 2 MFM hard disk drives with up to 8 heads and 1024 cylinders. Built-in ROM BIOS supports non-standard drive types, virtual drive formatting, dual drive operation, bad track formatting and dynamic formatting. Will be unavailable from WD after March, 1989. WD1004A-WX1, feature F300R - Half-slot size disk controller card with an ST506/ST412 interface. It supports 2 MFM drives with up to 16 heads and 1024 cylinders and is jumper configurable for secondary addressing and default drive tables. Built in ROM BIOS supports non-standard drive types, virtual drive formatting, dual drive operation, bad track formatting and dynamic formatting. Features a power connector for filecard applications and will also operate in AT systems. Reference NOTE 2. WDXT-GEN2, feature F300R - Half-slot size hard disk controller card with an ST506/ST412 interface. It supports 2 MFM hard disk drives with up to 8 heads and 1024 cylinders. Built-in ROM BIOS supports non-standard drive types, virtual drive formatting, dual drive operation, bad track formatting and dynamic formatting. Reference NOTE 2. XT HARD DISK CONTROLLERS FOR RLL HARD DISK DRIVES WD1002-27X, feature F301R - Half-slot size hard disk controller card with an ST506/ST412 interface. It supports 2 RLL hard disk drives with up to 16 heads and 1024 cylinders and is jumper configurable for secondary addressing and default drive tables. Built in ROM BIOS supports non-standard drive types, virtual drive formatting, dual drive operation, bad track formatting and dynamic formatting. Features a power connector for filecard applications and will also operate in AT systems. Will be unavailable from WD after March, 1989. Reference NOTE 2. WD1002A-27X, feature 300R - Half-slot size hard disk controller with an ST506/ST412 interface. It supports 2 RLL drives with up to 16 heads and 1024 cylinders. Built-in ROM BIOS supports non-standard drive types, virtual drive formatting, bad track formatting and dynamic formatting. Will be unavailable from WD after March, 1989. WD1004-27X, feature F301R - Half-slot size hard disk controller card with an ST506/ST412 interface. It supports 2 RLL hard disk drives with up to 16 heads and 1024 cylinders and is jumper configurable for secondary addressing and default drive tables. Built in ROM BIOS supports non-standard drive types, virtual drive formatting, dual drive operation, bad track formatting and dynamic formatting. Features a power connection for filecard applications and will also operate in AT systems. Reference NOTE 2. WD1004A-27X, feature F300R - Half-slot size hard disk controller with an ST506/ST412 interface. It supports 2 RLL drives with up to 16 heads and 1024 cylinders. Built-in ROM BIOS supports non-standard drive types, virtual drive formatting, bad track formatting and dynamic formatting. NOTE 1: AT&T 6300 - The AT&T 6300 and the AT&T 6300 PLUS contain system BIOS chips that support the hard disk drive. When using a Western Digital XT controller card the system will not "boot." To solve this problem, one of the ROM BIOS chips must be disabled. To disable the BIOS on your Western Digital XT controller card, you must remove the jumper at position W-3 or add a jumper at position R-23 (depending on which model of XT controller you are using). NOTE 2: TANDY 1000 SYSTEMS - The WD1002A-WX1, WD1004A-WX1, WDXT-GEN2 and the WD1004-27X can be modified to operate in Tandy 1000 series computers, models SX, TX and the original or "A" version. These computers utilize an interrupt of 2 (IRQ2) instead of IRQ5, the IBM standard. To modify the WD1002A-WX1 or the WD1002-27X to operate in these systems, you must cut the etch between pin 1 and pin 2 at jumper position W-7. Then solder pin 2 and pin 3 at the position (W-7). To complete the modification, a jumper must be added to position 7 of switch S-1 (2 rows of 8 pins). To modify the WD1004A-WX1, WDXT-GEN2 or the WD1004-27X for your Tandy 1000 system, a zero ohm resister must be soldered to jumper position W-27. This will change the interrupt from IRQ5 to IRQ2. XT CONTROLLERS FOR FLOPPY DISK DRIVES WD1002A-FOX - Half-slot floppy disk controller for XT or AT systems. Four versions of the board are available: Feature F001 supports two floppy disk drives. Feature F002 supports four floppy disk drives and includes an optional 37-pin control, data and power connector and an optional 4-pin power connector. Feature F003 supports two floppy disk drives and includes a ROM BIOS that will enable your system to recognize floppy disk drive that may not be supported by your AT system ROM BIOS. The optional ROM BIOS will also allow this controller card to operate high density floppy disk drives in an XT system. Feature F004 supports four floppy disk drives and includes an optional 37-pin control, data and power connector, an optional 4-pin power connector and a ROM BIOS that will enable your system to recognize floppy disk drives that may not be supported by your AT system ROM BIOS. The optional ROM BIOS will also allow this controller card to operate high density floppy disk drives in an XT system. AT HARD DISK CONTROLLERS FOR MFM HARD DISK DRIVES - NO FLOPPY SUPPORT WD1003-WAH, feature F003R - Hard disk controller card with an ST506/ST412 interface. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, 3:1 interleave. WD1003V-MM1, feature F300R - Hard disk controller card with an ST506/ST412 interface. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, 2:1 interleave. The "V" boards can run in high speed AT systems (10 to 16 megahertz system speed). WD1006-WAH , feature F001R - Hard disk controller card with an ST506/ST412 interface. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, 1:1 interleave. WD1006V-MM1, feature F300R - Hard disk controller card with an ST506/ST412 interface. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, 1:1 interleave and faster data transfer due to "look ahead caching." The "V" boards can run in high speed AT systems (10 to 16 megahertz system speed). AT HARD DISK CONTROLLERS FOR MFM HARD DISK DRIVES AND FLOPPY DISK DRIVES WD1003-WA2, feature F003R - Hard disk controller card with an ST506/ST412 interface, full AT form factor. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, at 3:1 interleave and 2 floppy disk drives (360K and 1.2 MB). WD1003A-WA2, feature F003R - Hard disk controller card with an ST506/ST412 interface, full XT form factor. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, at 3:1 interleave and 2 floppy disk drives (360K and 1.2 MB). WD1003V-MM2, feature F300R - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 MFM drives with up to 16 heads and 2048 cylinders at 2:1 interleave, and 2 floppy disk drives (5-1/4" 360K, 1.2Mb; 3-1/2" 720K, 1.44Mb). The "V" boards can run in high speed AT systems, (10 to 16 megahertz system speed). WD1006V-MM2, feature F300R - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 MFM drives with up to 16 heads and 2048 cylinders at 1:1 interleave and faster data transfer due to "look ahead caching" and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb). The "V" boards can run in high speed AT systems, (10 to 16 megahertz system speed). AT HARD DISK CONTROLLERS FOR RLL HARD DISK DRIVES - NO FLOPPY SUPPORT WD1003-RAH - Hard disk controller card with an ST506/ST412 interface. It supports 2 RLL hard disk drives with up to 16 heads and 2048 cylinders at 3:1 interleave. WD1003V-SR1 - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 RLL hard disk drives with up to 16 heads and 2048 cylinders at 2:1 interleave. The "V" boards can run in high speed AT systems (10 to 16 megahertz system speed). Feature F301R includes an optional ROM BIOS that allows the user to define the drive's parameters. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. WD1006-RAH - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 RLL hard disk drives with up to 16 heads and 2048 cylinders, 1:1 interleave. Feature F001R includes an optional ROM BIOS that provides additional drive parameter tables. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. WD1006V-SR1 - Hard disk controller card with an ST506/ST412 interface. It supports 2 RLL hard disk drives with up to 16 heads and 2048 cylinders, 1:1 interleave and faster data transfer due to "look ahead caching." The "V" boards can run in high speed AT systems (10 to 16 megahertz system speed). Feature F301R includes an optional ROM BIOS that allows the user to define the drive's parameters. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. AT HARD DISK CONTROLLERS FOR RLL HARD DISK DRIVES AND FLOPPY DISK DRIVES WD1003-RA2, feature F001R - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 RLL hard disk drives with up to 16 heads and 2048 cylinders, at 3:1 interleave, and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb). WD1003V-SR2 - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 RLL hard disk drives with up to 16 heads and 2048 cylinders, at 2:1 interleave, and 2 floppy disk drives, (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb). The "V" boards run in high speed AT systems (10 to 16 megahertz system speed). Feature F301R includes an optional ROM BIOS that allows the user to define the drive's parameters. Feature 300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. WD1006V-SR2 - Hard disk controller card with an ST506/ST412 interface. It supports a maximum of 2 RLL hard disk drives with up to 16 heads, 2048 cylinders and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb). It also features 1:1 interleave and faster data transfer due to "look ahead caching". The "V" boards can run in high speed AT systems (10 to 16 megahertz system speed). Feature F301R includes an optional ROM BIOS that allows the user to define the drive's parameters. Feature 300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. AT HARD DISK CONTROLLERS FOR ESDI HARD DISK DRIVES - NO FLOPPY SUPPORT - WD1007A-WAH - This controller card will support up to 2 ESDI hard disk drives, 10 megabit per second data transfer rate and 1:1 interleave. Feature F301R includes an optional ROM BIOS with "shadow RAM" that will enable the controller card to interface with all types of ESDI drives without modifying the system ROM BIOS. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. WD1007V-SE1/ME1 - This controller card will support up to 2 ESDI hard disk drives, 15 megabit per second data transfer rate and 1:1 interleave. The "V" boards can run in high speed AT systems, (10 to 16 megahertz system speed). Feature F301R includes an optional ROM BIOS with "shadow RAM" that will enable the controller card to interface with all types of ESDI drives without modifying the system ROM BIOS. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. AT HARD DISK CONTROLLERS FOR ESDI HARD DISK DRIVES AND FLOPPY DISK DRIVES WD1007A-WA2 - This controller card will support up to 2 ESDI hard disk drives, 10 megabit per second data transfer rate, 1:1 interleave and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb). Feature F301R includes an optional ROM BIOS with "shadow RAM" that will enable the controller card to interface with all types of ESDI drives without modifying the system ROM BIOS. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. WD1007V-SE2/ME2 - This controller card will support up to 2 ESDI hard disk drives, 15 megabit per second data transfer rate, 1:1 interleave and 2 floppy drives (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb). The "V" boards can run in high speed AT systems (10 to 12 megahertz bus speed). Feature F301R includes an optional ROM BIOS with "shadow RAM" that will enable the controller card to interface with all types of ESDI drives without modifying the system ROM BIOS. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameters. WD1007A-WA4 - This controller card will support up to 2 ESDI hard disk drives, 10 megabit per second data transfer rate, 1:1 interleave and 2 floppy disk drives (5-1/4" 360K, 1.2 Mb; 3-1/2" 720K, 1.44 Mb). This board also has a serial port and parallel port. Feature F301R includes an optional ROM BIOS with "shadow RAM" that will enable the controller card to interface with all types of ESDI drives without modifying the system ROM BIOS. Feature F300R does not include the ROM BIOS and you must use the drive tables on your system's ROM BIOS that must contain the appropriate drive parameter. AT HARD DISK CONTROLLERS FOR SCSI HARD DISK DRIVES 7000-ASC - A SCSI host adapter that serves as an interface between the AT bus and the SCSI bus. All necessary drivers and receivers are included, permitting direct cable connections to the SCSI bus through a 50 pin connector and to the AT bus through two edge connectors. The 7000-ASC utilizes jumper configurable options that enable the address space, DMA channels and interrupt requests to be selected to suit the end user's application. The board also features word data transfer at 4 megabytes per second (synchronous), an on-board floppy disk controller and a ROM BIOS. Please note that the 7000-ASC operates using standard DOS 3.2 or DOS 3.3 only. 7000-FASST2 - This SCSI host adapter card provides the same features as the 7000-ASC plus additional support capabilities using software developed by Columbia Data Products. The 7000- FASST2 will support MS-DOS 3.2-3.3, Compaq DOS 3.31, PC-DOS 4.0, PC-MOS/386 version 2.1, XENIX, Microsoft Windows, Novell and Sytos tape backup. WDATXT-FASST KIT - An "unintelligent" SCSI host adapter that is compatible with the IBM XT, AT and compatible systems. It uses a 50 pin external SCSI bus "D" connector with a standard 50 pin internal SCSI cable. The WDATXT-FASST can be used as both a target and an initiator and it serves as an excellent tool for SCSI designers. It also provides a low cost alternative for end- users desiring to install a SCSI peripheral device such as a hard disk drive or a tape backup unit. The kit includes an 8-bit SCSI HBA board, manual, FASST software diskettes and an internal SCSI cable. SYTOS TAPE BACKUP - (Utility for 7000-FASST) - FASST-SYTOS - FASST version of Sytos tape backup utilities. MS-DOS compatible, it runs with FASST software products Revision 3.3+. HARD DISK CONTROLLERS FOR PS/2 MODEL 50,60,80 SYSTEMS (MICROCHANNEL) WD1006V-MC1, feature F300R - Hard disk controller with an ST506/ST412 interface for microchannel systems. It supports 2 MFM drives with up to 16 heads and 2048 cylinders, 1:1 interleave and faster data transfer due to "look ahead caching." The"V" boards can run in high speed AT systems (10 to 16 megahertz system speed). WD1007V-MC1, feature F300R - This controller card will support up to 2 ESDI hard disk drives, 15 megabit per second transfer rate and it contains a ROM BIOS with "shadow RAM" that will enable the controller card to interface with all types of ESDI hard disk drives without modifying the system BIOS. It uses 1:1 interleave. The "V" boards can run in high speed AT systems, (10 to 12 megahertz bus speed). ------------------