Highpoint RS6661B PCI-Express Enclosure with Thunderbolt 3

Highpoint RS6661B – PCI-Express Thunderbolt 3 Enclosure

The Highpoint RS6661B is a full-height, full-length PCI-Express enclosure that provides a single Thunderbolt 3 (USB-C) host connection and one available PCIe slot for adapter cards.

• Thunderbolt 3 at 40 Gbps delivers high-speed data transfer for demanding storage and expansion workloads
• 1x PCIe Gen 4/8/16 slot supports a wide range of expansion cards, from network adapters to storage controllers
• External power supply ensures stable operation under sustained load without drawing power from the host
• Integrated fan provides active cooling for reliable long-term operation

What sets the RS6661B apart

As a full-height, full-length form-factor enclosure, the RS6661B fits standard desktop PC cases and server chassis where half-height or low-profile adapters would not be supported. The Thunderbolt 3 interface combines high bandwidth with the ubiquitous USB-C connector, simplifying cabling and compatibility with modern hosts.

Ideal for

IT administrators and workstation users who need to add PCIe expansion cards — such as 10GbE network adapters, RAID controllers, or specialized I/O cards — to a Thunderbolt 3-equipped host without opening the system chassis.

Application of the Highpoint RS6661B

1. Install the desired PCIe adapter card into the RS6661B enclosure
2. Connect the enclosure to the host via the Thunderbolt 3 cable
3. Power the enclosure with the included external power supply
4. Install drivers or firmware as required by the specific expansion card