Bridge Controllers


    JMicron's bridge controller series offers a full range of high-speed and super-speed FireWire and SATAII/III interfaces for data storage applications. Each controller comes with JMicron's proprietary RAID engine hardware design, which offers the best reliability & performance available. All integrated IPs were developed by JMicron's outstanding R&D, and are already well-received in the field.

USB 3.1 Gen1 (5Gbps)

    JMicron's USB 3.1 Gen1 (5Gbps) controller series offers the best performance and greatest compatibility for HDD/SSD storage devices in external storage solution applications.


    JMicron's USB2.0 controller series offers the best connectivity for USB2.0/FireWire, being both compatible and cost-effective when utilized in HDD storage devices for external storage solution applications.

SATA to PATA Bi-direction series

    JMicron's SATA to PATA bi-directional bridge controllers are the best selection for the MCU implementing SATA/PATA connectivity.

Port Multiplier/Selector & RAID Series

    With reputable reliability and compatibility, JMicron's port multiplier/selector controllers are the proper choice for surveillance, home gateway, and other similar systems requiring SATA storage expansion.

Compliant with

  • USB2.0, USB 3.0 Specification
  • Gen2i/Gen2m of Serial ATA II Electrical Specification 2.6
  • Gen3 of Serial ATA III Electrical Specification 3.0
  • USB Mass Storage Class, Bulk-Only Transport Specification
  • USB Attached SCSI Protocol (UASP) Specification
  • IEEE Std 1394-1995, IEEE 1394a-2000 and IEEE 1394b-2002 Specifications


  • Hardware RAID 0/1/3/10/5, Clone functions with specific controllers
  • Optional GPIOs for user customization
  • USB Super-Speed/High-Speed/Full-Speed Operation
  • USB2.0/USB3.0 power saving mode
  • External SPI NVRAM for Vendor VID/PID of USB2.0/USB3.0 device controller
  • Provides hardware control PWM
  • ATA/ATAPI PACKET command set
  • Supports to Win XP, Vista, Win7, Win8, Win8.1, MAC 10.3 or later version
  • 1394A/B SBP-2 Acceleration to optimize performance
  • Various of IC package: QFN48 package (6x6), QFN48 package (7x7), LQFP48 package (7x7), LQFP64 package (10x10)