Firewire 400 800 JBOD to 4 IDE drives

USB3.1 To ESATA (6Gb) Adapter Support Port Multiplier - New (Patent Pending)

Firewire 400 800 JBOD to 4 IDE drives

USB3.0 To SATA3 (6Gb) Bridge Board - U3-SATA312-7

Firewire 400 800 JBOD to 4 IDE drives

USB3.0 To SATA3 (6Gb) Write-Block Bridge Board Panel-Mount

USB3.1 To ESATA (6Gb) Adapter Support Port Multiplier - New (Patent Pending)

eS3U31 - the latest USB adapter provides the simplest and fastest way for anyone who wants to use external SATA (eSATA) enclosures with the new USB 3.1 host (USB 3.0 compatible). Whether it is a single drive or multiple devices with a built-in port multiplier, JMB393, JMB394. JMB575 chipset (patent pending). Note: Current Firmware DOES NOT support Silicon Image, Marvel and Asmedia PM bridge! 

DAT Optic's eS3U31 is must have the device for your new computer either Mac, Windows or Linux!

Availability: In stock

eS3U31 - Key Features

  • A new replacement of our famous U3eSATA adapter
  • Supports eSATA drive with or without port-multiplier up to 6Gb (SATA III)
  • Supports Hot-Swap & Plug-n-Play Windows ME, and later, Mac OS X, and Linux Kernel 2.6+, Solaris 10
  • Supports Software RAID feature in Mac OS X, and Linux
  • Supports SATA Port-Multiplier: JBOD or Hardware RAID
  • Supports SATA III Asynchronous Signal Recovery (Hot Plug) feature (6Gb)
  • Complies with USB 3.1, USB3.0 and USB2.0 Specification, USB Mass Storage Class, Bulk-Only Transport Specification
  • Supports USB 3.1 Super-Speed/High-Speed/Full-Speed Operation
  • No power, no driver required
  • Designed in the USA

This USB3.1 to eSATA adapter allows you to connect ANY eSATA device with or without Port Multiplier (up to 6Gb SATAIII) to a super speed USB3.1 device! It provides a bandwidth of 10Gb/s, driver-less technology, and fully supports software RAID feature in Linux and Mac OS X.

Here is the screen capture of 2012 Retina MacBook with our U3eSATA adapter. 

Please ensure the USB3.0 drivers in your system are the same rev as listed below. 
- Installed latest Windows Updates as required 
- Intel USB3.0 version V1.0.5.235 - Chipset Series 7 Boards 
- Intel USB3.0 version V3.0.5.69 - Chipset Series 8; 9 Boards 
- Fresco USB3.0 Driver Version V3.5.42.0 
- AsMedia USB3.0 Driver Version V1.14.8.0 
- NEC USB3.0 Version V2.1.32.0 - chipset uPD720200 
- NEC USB3.0 Version V3.0.16.0 - chipset uPD720201 
- TI USB3.0 Version V12.18 - chipset TUSB7340

Our New Adapter function same as the predecessor U3eSATA adapter but Faster and support latest SATA III

Supports Port Multiplier 
This means with our USB 3.1 adapter, your system can see up to as many drives as you want! Imagine creating a massive 500TB (10TB x 50 drives) volume with a ten (10) port hub and a ten PM (port multiplier) adapters/bridges. Since USB 3.1 or USB 3.0 hub can be cascaded, the question then is how many drives do you want to connect?!?

eSATA (6Gb) to USB 3.1 connectivity 
USB3.1 to eSATA 6Gb adapter is the easiest solution for connecting any of the latest eSATA - support SATA I, II and III - devices to the ubiquitous USB3.1 port. Fully support most notebooks and desktops and its compact design is easy to carry and easy to use.

Easy of Use 
Does not require drivers or power. It is truly a plug and play device, it takes seconds!

For OEM or bulk quantity pricing, please contact

Write Your Own Review
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No driver needed compatible with ANY OS support USB protocol: USB3.1, USB 3.0, USB 2.0. Flash and PM Firmware for our eS3U31 Here Ver v1_19_16_23
Part Number eS3U31 
USB 3.1 to eSATA (6Gb SATAIII) adapter (patent pending)
Peripherals Any eSATA enclosure with or without PM technology
Operating System ANY OS support USB 3.1, 3.0 and 2.0 
Linux: Required kernel 3.13xxxx or later
Host Interface USB3.0 
Supports USB Super-Speed 10Gb/ 5Gb/s; High-Speed 480Mb/s; Full-Speed 12Mb/s Operation
Device Interface eSATA device support PM ware SATA II and SATA III 
Support SiI-3726, SiI-4726, JMB393, JMB394, JMB321, 88SM4140, JMB575
Operating Temperature 0o C to 50o C
Operating Humidity 5% to 95% non-condensing
Dimensions .5 x 1.25 x 2.5-inches (H x W x D, approximate)
Power Requirement No external power required
Package Contents eS3U31 Adapter - No power required
Frequently Asked Questions Q: Does it support 5 SATA port multiplier with JMB321, which is very popular on the net? Thank you. 1 answers A: Yes, It does, the chipset we used is JMicron Q: Are you working on firmware to support silicon image? I would love to be able to use your product! 1 answers A: Unfortunately, Silicon Image is longer exist, therefore we can not get any data, or support to make this compatible with our adapter. Sorry there is no other way Q: Connecting Ratoc SA-DK5ES multi HD tower with Mac Book Pro 15" 2016 with High Sierra OS. Ratoc Support wrote: SA-DK5ES must be connected to the eSata host adapter that supports Port Multiplier. 1 answers A: Ratoc SA-DK5ES is an old SATA II ( 3.0 Gbps、1.5 Gbps) box which is most likely using Silicon Image. Our eS3U31 does not support this chipset Q: I also bought the eS3U31 via Amazon. I have four Sil3726-based PM enclosures. The Sil3726 IS on the list of supported PMs on the product page. The eS3U31 does not negotiate a link with any drives in the enclosure. The light for drive 1 flashes several times 1 answers A: Sorry for the mistake on our website. This new adapter ONLY supports JMicron chipset. Web page already corrected Q: How can one flash a defective unit when you only have a Mac to flash it with and a JBOD? 1 answers A: To flash you must use Windows Q: I bought the eS3U31 product from Amazon. My drive is not being detected. I'm using a Sonnet Fusion D500p enclosure with 5x WD2002FYPS 2 TB drives. I tried restarting my laptop and made sure all drives seated properly, but that didn't seem to work. 1 answers A: Currently, our adapter only supports JMicron chipset Q: Trying to hook this up to a Sans Digital TR5M+bnc w/ 2 WD Red Pro drives and a Mac Mini [Loaded] - no luck. Also on PC or MacBook Pro - no luck... Does latest USB just not load or is unit pooched/DOA? Not shown in USB panels as a device or anything... A: Til now our adapter only supports PM mode with JMicron chipset