JMicron’s USB storage device controllers have enhanced data transmission performance by the USB Attached SCSI data transmission protocol (UASP), as well as an associated internal hardware accelerator that maximizes sequential and random data read/write rates. All USB storage device controllers are required to go through the USB compliance test before they are released to market to ensure full compatibility with prevailing USB hosts and SATA devices.

JMicron deliberately designs in ultra-fast read/write channels, highly efficient layout designs, and powerful cryptographic engines. 

Our expertise in high-speed physical layer (PHY) of USB and SATA formats, as well as excellence in RAID hardware design enables JMicron to provide a wide selection of data storage controllers. By combining these controllers as building blocks, customers can not only configure their hard disk drives (HDDs), but solid state drives (SSDs) as well.  External data storage devices can be used for redundant data storage, additioanl data storage, or convenient data retrieval from the field. 

Our core technology of external storage devices

  • USB Attached SCSI data transmission protocol (UASP): enhance the data transmission performance
  • Hardware RAID engine design: optimize the scalability of data storage. 
  • Internal hardware accelerator: maximize the sequential and random data read/write rates.
  • USB compliance test: ensure full compatibility with prevailing USB hosts and SATA devices.

JMicron’s Solutions

Single Bay Controller

JMicron’s a series of single bay controllers for USB 2.0/ USB 3.0/ USB 3.1/ USB 3.2 host interfaces.

Devices application

  • External USB DAS
  • USB-native HDDs
  • USB enclosure
  • Smart TV storage devices
  • Gaming console storage devices
  • Window-to-go applications

Dual-/Multi-Bay Controller

JMicron’s a series of dual-/ multi-bay bridge controllers for external multiple-bay HDDs, RAID, and SATA Port Multipliers and SATA Port Selectors.

Devices application

  • NAS
  • Personal Cloud Storage
  • Hyper Backup
  • Active Backup
  • Cloud Station Backup

Solutions for External Storage

JMS583

  • USB 3.1 Gen2 to PCIe/NVMe Gen3x2
  • Support TCG pass-through and TRIM command
  • Comply with USB Mass Storage Class BOT and UASP

JMS580

  • USB 3.1 Gen2 to SATA 6Gbps
  • Support external USB Type-C PD controller
  • Support TRIM command for SSD and comply with BOT/UASP specification

JMS578

  • USB 3.1 Gen1 to SATA 6Gbps
  • Comply with UASP specification
  • Provide a low power and high-performance solution for SSD/HDD/ODD

JMS576

  • USB 3.1 Gen1 to SATA 6Gbps
  • Support TCPC controller/ UASP/ BOT
  • An integrated Type-C Multiplexer & Device CC control logic for Type-C storage solution

JMS562

  • USB 3.0 + eSATA 6Gbps to Dual SATA 6Gbps
  • RAID 0 / 1 / JBOD

JMS561U

  • USB 3.0 to Dual SATA 6Gbps
  • CLONE support

JMS561

  • USB 3.0 to Dual SATA 6Gbps
  • RAID 0 / 1 / JBOD
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