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RocketStor 6661A-2USB1

RocketStor 6661A-2USB1

Thunderbolt™ 3 to 2x 5Gb/s USB 3.2 Adapter

  • Thunderbolt™ 3 to 2x 5Gb/s USB 3.2 Ports

  • Dual-Port Solution: 2x Type-A Ports

  • Supports up to 2x USB 3.2/3.1/3.0/2.0 devices

  • Works with any Thunderbolt™ 3 capable Mac or PC

Product Information

Dual Type-A Connectors

The RocketStor 6661A-2USB1 is a versatile USB 3.2 5G connectivity expansion solution for Thunderbolt™ 3 capable host platforms. Each RocketStor 6661A-USB1 provides dual Type-A ports for maximum compatibility and ease of use. Though optimized for external USB storage devices such as enclosures, USB drives and docks, the RocketStor 6661A is also capable of supporting any industry standard USB 3.2/3.1/3.0/2.0 device or peripheral.

Works with any Thunderbolt™ 3 capable Mac or PC

Like all HighPoint Thunderbolt™ 3 I/O Solutions, the RocketStor 6661A-2USB1 was designed with simplicity and ease of use in mind. The unit is shipped preassembled, and ready to use right out of the box. Simply connect the RocketStor to your Thunderbolt™ Mac or PC using the included Thunderbolt™ 3 40Gb/s cable, plugin the power adapter, and you are ready to go!

Optional Device Cables for any USB Connector Type

The RocketStor 6661A-2USB1 is capable of supporting nearly any industry-standard USB port type when used in conjunction with the HighPoint USB-C31-1MA (Type-A to Type-C) and USB-A31-06B (Type-A to Micro-B) USB device cables. HighPoint device cables are manufactured to our high-standards of quality, and thoroughly tested to ensure secure connectivity, maximized transfer performance, and years of trouble-free utility.

Universal Compatibility

The RS6661A-2USB1 is an all-in-one, USB 3.2 connectivity solution for any Thunderbolt capable Mac or PC.

In addition to high-performance storage devices, the USB 3.2 architecture supports industry standard USB 2.0 and 3.x peripherals including printers and scanners, hubs, card readers and interface devices.

Learn More

Hardware Feature

Host Ports
2x Thunderbolt™ 3 Ports
I/O Ports
2x USB 3.2 Gen1 Type-A Ports
Number of Channel / Port
5Gb/s Per USB 3.2 Port
Number of Devices
2x USB 1.x, 2.0, and 3.x compatible devices
Daisy Chain
Support Daisy Chain connect up to six Thunderbolt devices.
TB3 Technology
Power delivery 15W to bus-powered devices Backward compatible to Thunderbolt 2 devices USB-C ports compatible with existing USB devices via USB-C cable, support up to USB 3.2 10Gb/s speed
System Requirement
Computer with a USB-C (Thunderbolt 3) Computer with a Thunderbolt 2 (via Thunderbolt 3 to Thunderbolt 2 Adapter)
• Apple Mac Pro Systems: 2012 and later Mac Pro systems; 5.1, 7.1 (2019) • macOS10.12.6 and later • Intel Platform compatible
• Windows 11, 10, 8.1 • Windows Server 2022, 2019, 2016, 2012, and 2008 (64-bit editions)
macOS 10.12.6~macOS Monterey 12.x
• Linux kernel v2.6.31+ • Note: Your PC may need updates for the Thunderbolt 3 ports to function properly. See here for more information. (
Enclosure Indicator
Power On (Blue)
Chassis Design Features
Rugged, Ultra slim aluminum enclosure
Dual-Ultra Quiet, high-efficiency Cooling fans
Quick release thumbscrews for easy access
Power Supply
External 60 watts power supply
2.24"(W) x 10.12"(D) x 6.30" (H)
4.81 lbs
Limited Warranty period (parts): 1 year 
Limited Warranty period (Labor): 1 year 
Return For Repair or Replacement Only
Input AC 100-240V Output DC 12V 5A
Work Temp:
+5°C ~+ 55°C
Storage Temp:
-20°C ~ +80°C
MTBF (Mean Time Before Failure)
920,585 Hours
Compliance Certification
Power Supply
INPUT: 100-240V ~ 1.5A 50-60Hz OUTPUT: 12V ~ 6.25A
Kit Contents
1x USB 3.2 Gen 2 type A and 1x USB 3.2 Gen 2 type C Port Adapter
1x Thunderbolt 3 to PCIe Expansion Unit
1x Thunderbolt 3 40Gb/s cable
1x Power cord
1x Quick Installation Guide

Optional Accessories

TB3-040G-510 - 1M / Active (40Gb/s)
TB3-040G-520 - 2M / Active (40Gb/s)
USB-A31-1MC - USB-A to USB-C cable (USB 3.1 Gen 2 10Gb/s)
USB-A31-06B - USB-A to USB-Micro B (USB 3.1 Gen 2 10Gb/s)
Window Driver 7 and later / Windows 2008 and later
Natively supported
Mac driver
Natively supported
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TB3-040G-520 - 2M / Active (40Gb/s)
Thunderbolt™ 4 USB-C to Thunderbolt™ 4 USB-C cable, 2.0M.
USB-A31-1MC - USB-A to USB-C cable (USB 3.1 Gen 2 10Gb/s)
1M 10Gb/s USB-A to USB-C cable
USB-A31-2MC - USB-A to USB-C cable (USB 3.1 Gen 2 10Gb/s)
2M 10Gb/s USB-A to USB-C cable
USB-A31-06B - USB-A to USB-Micro B (USB 3.1 Gen 2 10Gb/s)
0.6M 10Gb/s USB-A to USB Micro-B
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