top of page

RocketStor 6661A-4USB

Thunderbolt™ 3 to 4x 10Gb/s USB 3.1 Adapter

  • Thunderbolt™ 3 to 4x 10Gb/s USB 3.1 Type-A Ports

  • Supports up to 4x USB 3.1/3.0/2.0 devices

  • Works with any Thunderbolt™ 3 capable Mac or PC

RocketStor 6661A-4USB

Product Information

Industry’s Fastest USB 3.1 Connectivity Solution for Thunderbolt™ platforms

Experience the performance of Thunderbolt™ and the convenience of USB, without compromise. The RocketStor 6661A-4USB allocates the 40Gb/s of transfer bandwidth provided by Thunderbolt™ 3 connectivity to power four dedicated 10Gbs USB 3.1 channels. This 4-in-1 combination is ideal for high-performance USB storage configurations but is also fully capable of supporting any USB 3.1/3.0/2.0 USB device or peripheral such as input devices, printers & scanners, or flash drives.

Optimized for Maximum Performance

The RocketStor 6661A-4USB takes full advantage of HighPoint’s performance driven USB 3.1 architecture. Unlike conventional USB cards, docks and hubs, which split a single 10Gb/s channel between two or more ports, the RocketStor 6661A-4USB provides dedicated 10Gb/s USB 3.1 transfer bandwidth for each Type-A connector. This unique approach to USB connectivity is ideal for high-speed USB-based storage applications.

Works with any Thunderbolt™ 3 capable Mac or PC

Like all HighPoint Thunderbolt™ 3 I/O Solutions, the RocketStor 6661A-4USB 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, plug in the power adapter, and you are ready to go!

Optional Device Cables for any USB Connector Type

The RocketStor 6661A-4USB is capable of supporting nearly any industry-standard USB port type when used in conjunction with the HighPoint USB-A31-1MC (Type-A to Type-C) and USB-A31-06B (Type-A to Micro-B) USB 3.1 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.

Learn More

Features Specifications

Host Ports
2x Thunderbolt™ 3 Ports
I/O Ports
4x USB 3.1 Gen 2 Type-A Ports
Number of Channel / Port
10Gb/s Per USB 3.1 Gen 2 Port
Number of Devices
4x USB 3.1/3.0/2.0 devices or peripherals
Daisy Chain
Support Daisy Chain connections of up to six Thunderbolt™ devices
Note: the Daisy Chain will end if you connect a USB or Display device via USB-C
TB3 Technology
Daisy Chain up to 6 devices
Bi-directional, dual-protocol (PCI Express and DisplayPort)
8 lanes of DisplayPort 1.2 supports dual 4K displays or one 5K display
Power delivery 15W to bus-powered devices
Backwards compatible with Thunderbolt™ 2 devices
USB-C ports are compatible with existing USB devices via USB-C cable, support up to USB 3.1 10Gb/s speed

System Requirement

Computer with a USB-C (Thunderbolt™ 3)
Computer with a Thunderbolt™ 2 (via Thunderbolt™ 3 to Thunderbolt™ 2 Adapter)
macOS X 10.10 ~ macOS ventura 13.x
Mac Intel platform: Driver embedded into Mac OS X 10.10 and later. Mac M1 platform: The driver needs to be downloaded and installed from the official website.
Windows 11, 10, 8 Only supports 64 bit operating system.

Thunderbolt4 supoort: • Support Mac Thunderbolt4 platform • Support Z690 chipset PC platform(Not support RR3700 and RR800 series) • Not support Z590 chipset PC platform

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"(H) x 6.30" (D)   

6 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
Certification / Approval
CE, FCC, RoHS, REACH, WEEE, Thunderbolt™

Kit Contents

Integrated 4-Port 10Gb/s USB 3.1 Controller
1x Thunderbolt™ 3 to PCIe Expansion Unit
1x 40Gb/s Thunderbolt™ 3 cable
1x External Power Supply
1x Power Cord
Quick Installation Guide
Page 1 of 1
Windows Driver
Natively supported by Windows 8 and later
Intel platform - macOS 10.12.6 and later
embedded in OS
Page 1 of 1
bottom of page