Bridge Controllers

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.


  • JMB575 1 to 5-ports Serial ATA III Port Multiplier or a 5 to 1-port Serial ATA III Port Selector
    JMB575 is a single chip. It integrated six independent SATA channels and a micro-processor. With proper setting, the chip can be configured as 1 to 5- ports Serial ATA III Port Multiplier or a 5 to 1-port Serial ATA III Port Selector. JMB575 contains 15 GPIOs which can be configured as various standard interfaces. It also has the capability to load external firmware code to extend its functionality. JMB575 supports cascaded mode which enables maximum 15 drives connected to one host.
  • JMB572 1 to 2-ports Serial ATA III Port Multiplier or a 2 to 1-port Serial ATA III Port Selector
    JMB572 is a single chip. It integrated three independent SATA channels and a micro-processor. With proper setting, the chip can be configured as 1 to 2- ports Serial ATA II Port Multiplier or a 2 to 1-port Serial ATA II Port Selector. JMB572 contains 15 GPIOs which can be configured as various standard interfaces. It also has the capability to load external firmware code to extend its functionality.
  • JMB320 1 to 2-ports Serial ATA II Port Multiplier or a 2 to 1-port Serial ATA II Port Selector
    JMB320 is a single chip. It integrated three independent SATA channels and a micro-processor. With proper setting, the chip can be configured as 1 to 2- ports Serial ATA II Port Multiplier or a 2 to 1-port Serial ATA II Port Selector. JMB320 contains 15 GPIOs which can be configured as various standard interfaces. It also has the capability to load external firmware code to extend its functionality.
  • JMB321 1 to 5-ports Serial ATA II Port Multiplier or a 5 to 1-port Serial ATA II Port Selector
    JMB321 is a single chip. It integrated six independent SATA channels and a micro-processor. With proper setting, the chip can be configured as an 1 to 5-ports Serial ATA II Port Multiplier or a 5 to 1-port Serial ATA II Port Selector. JMB321 contains 15 GPIOs which can be configured as various standard interfaces. It also has the capability to load external firmware code to extend its functionality.
  • JMB390 1 to 2-ports Serial ATA II Port Multiplier & RAID-0/1/10 Controller
    JMB390 is a single chip, 1 to 2-ports Serial ATA II Port Multiplier with RAID function support.It is designed to provide SATA port expansion, data protection and performance aggregation at various applications. JMB390 uses JMicron¡¦s production-proven Multi-port Serial ATA PHY technology and JMicron-proprietary storage processor to provide very high efficient SATA RAID operation. With an easy configuration scheme, the device can be a pure port multiplier which provides SATA port expansion just like a SATA Hub, or hard-drive performance booster which provides a high performance device seen by host controller or hard-drive data protector which automatically backup data to prevent data loss from hard-drive damage.
  • JMB393 1 to 5-ports Serial ATA II RAID-5 Controller
    JMB393 is a single chip, 1 to 5-ports Serial ATA II Port Multiplier with RAID function support. It is designed to provide SATA port expansion, data protection and performance aggregation at various applications. JMB393 uses JMicron's production-proven Multi-port Serial ATA PHY technology and JMicron-proprietary storage processor to provide very high efficient SATA RAID operation. With an easy configuration scheme, the device can be a pure port multiplier which provides SATA port expansion just like a SATA Hub, or hard-drive performance booster which provides a high performance device seen by host controller or hard-drive data protector which automatically backup data to prevent data loss from hard-drive damage. JMB393 also has advance mode to provide both benefit of performance boost and data protection.
  • JMB394 1 to 5-ports Serial ATA II RAID-5 Controller with LCM interfaces
    JMB394 is a single chip, 1 to 5-ports Serial ATA II Port Multiplier with RAID function support. It is designed to provide SATA port expansion, data protection and performance aggregation at various applications. JMB394 uses JMicron's production-proven Multi-port Serial ATA PHY technology and JMicron-proprietary storage processor to provide very high efficient SATA RAID operation. With an easy configuration scheme, the device can be a pure port multiplier which provides SATA port expansion just like a SATA Hub, or hard-drive performance booster which provides a high performance device seen by host controller or hard-drive data protector which automatically backup data to prevent data loss from hard-drive damage. JMB394 also has advance mode to provide both benefit of performance boost and data protection.