Overview
JMicron JMS561 is a Supper Speed to Dual SATA GenIII Ports bridge 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 III Port Multiplier or hardware striping & mirror. The JMS561 is able to reach a data transmission rate above 400M bytes per second when paired with an SSD module using JMicron’s JMF667 SSD controller. 

FEATUREs
➢ Complies with Serial ATA International Organization: Serial ATA Revision 3.1
➢ Complies with Universal Serial Bus 3.0 Specification Revision 1.0
➢ Complies with USB Mass Storage Class Bulk-Only Transport (BOT) Rev. 1.0 Specification
➢ Complies with USB Attached SCSI Protocol (UASP) Rev. 1.0 Specification
➢ Supports USB Super-Speed/High-Speed/Full-Speed Operation
➢ Supports USB 2.0/USB 3.0 power saving mode
➢ Supports multi LUNs for USB 2.0/USB 3.0
➢ Supports port multiplier for eSATA
➢ Supports hardware RAID0 (striping) and RAID1 (mirror) over USB 2.0/USB 3.0/eSATA
➢ Flexible GPIOs for customized functions
➢ Provides a hardware control PWM
➢ Provides software utilities for downloading the upgraded firmware code under USB2.0/USB3.0/eSATA
➢ Design for Windows XP, Windows 7, Windows 8, MAC 10.3 or later versions
➢ 30MHz external crystal
➢ An embedded 2.5V to 1.3V voltage regulator
➢ An embedded 5.0V to 3.3V voltage regulator
➢ QFN 64 package