• U2-122SD1B support two IDE (ATA/ATAPI) devices.

U2-122D1B(Horizontal Type, supports 2x IDE drives) is a USB 2.0 to IDE (ATA/ATAPI) bridge board with DC 12V Input and DC output (12V & 5V) for IDE drive

The USB-122SD1B implements a bridge between one USB 2.0 port and two ATA/ATAPI based mass storage device ports. This bridge adheres to the Mass Storage Class Bulk-Only Transport specification and is intended for self-powered devices.

Hardware design allows CBW command queuing, which allows data transfer rates for up to USB theoretical maximum. The USB port of the USB-122SD1B connects to a host computer directly or via the downstream port of a USB hub. Host software issues commands and data to the USB-122SD1B and receives status and data from the USB-122SD1B using standard USB protocol.

Built-in USB2.0-to-IDE Interface Controller with general IDE interface & bulk-only transport of USB mass storage class support industry-standard 8/16-bit PIO/DMA & Multi-word DMA and Ultra Mode DMA modes 0-4 (upto UDMA66) for storage devices as DVD/CD-ROM, CD-R/W and Harddisk device, etc.

The ATA/ATAPI interface supports The device initialization process is configurable, enabling the USB-122SD1B to initialize most ATA/ATAPI devices without software intervention.

  • Enables quick penetration of USB 2.0 markets
  • Complete backward compatibility
  • Leverages ATA/ATAPI peripheral economies of scale
  • Supports both ATA and ATAPI devices by using the same firmware
  • Support two IDE Devices (Master and Slave).
  • 48-bits LBA addressing (>128GB) support.
  • Allows use of existing peripheral software applications
  • Provides cost-effective solution for remote location of peripheral devices
  • User friendly interface - Plug&Play and Ease of use
  • Enables hot swappable peripherals
Technical Specifications

USB 2.0 to IDE (ATA/ATAPI) Bridge Board:

  • Complies with the USB-IF specifications for USB 2.0, the USB Mass Storage Class, and the USB Mass Storage Class Bulk-Only Transport.
  • Operates at High (480Mbps) or Full (12Mbps) speed.
  • Uses one external serial EEPROM containing the USB device serial number, vendor and product identification data, and device configuration data.
  • Self Powered Mode Of Operation
  • Built-in High-performance Micro-controller Engine for interface, flow & multi-functional control
  • Support for ATA/ATAPI devices configured either as master or slave.
  • ATA/ATAPI Interface Supports:
    • PIO Mode 0 ~ 4
    • Multiword DMA Mode 0 ~ 2
    • Ultra DMA Mode 0 ~ 4
    • Supports 48-bit addressing for large hard drives (>128GB)
  • Provide High Speed LED and Device Access LED
  • IDE (ATA/ATAPI) Interface: IDC 2X20 Male Connector
  • USB 2.0 Interface: One External USB B-type-4pin Connector
  • DC Power Input: Walkman-type 2.0 mm DC Jack
  • DC Power Output: mini 4-pin (+12V, GND, GND, +5V) FDD like Power Connector
Physical Dimensions
  • 9cm (W) x 4.5cm (L) x 2.5cm (H)
Net Weight
  • 72g
Hardware Requirements
  • Desktop PC: with either a built-in USB (1.0 or 2.0) controller or an USB (1.0 or 2.0) to PCI Host Adapter equipped with a external USB port.
  • Laptop PC: with either a built-in USB (1.0 or 2.0) controller or an USB (1.0 or 2.0) to CardBus PC Card equipped with a external USB port.
Operating System Requirements
  • Windows 98SE/ME/2000/XP/2003; MacOS 9.1 or higher; Linux
  • Driver Requirements
    • USB:
      • No driver installation for Windows ME, 2000, XP, 2003, Mac OS and Linux.
      • Driver available for Window 98 SE

End users will have an immediate and no-risk solution for adding USB 2.0 interface to ATA/ATAPI devices. See example below.


Kit includes
  • USB-122SD1B Bridge Board
  • A-to-B type USB 2.0 Cable (1.0m length)
  • Ultra DMA100 Cable (18 inch for two IDE devices)
  • Y-Shape DC Power Cable (Red, Black, Black, Yellow) with power connectors (two FDD like mini 4pin and one IDE big 4pin female plug)
  • AC 100 ~ 240 V to DC +12V/4.16A Power Adapter
  • AC power cord (Length: 6 feet)
  • Metal frames (left and right) for holding two 5.25" IDE devices
  • 3.5" HDD to 5.25" metal mounting kit
  • User's Guide