Sonnet Technologies Allegro
4-Port SuperSpeed USB 3.2 (5Gb/s) PCI Express 2.0 Expansion Card
Mfr P/N: USB3-4PM-E OWC SKU: STIUSB34PME
Speedy USB 3.2 Performance
- Adds USB 3.2 (5Gb/s) Connectivity: Adds four USB-A 5Gbps ports to your Mac Pro®, Windows PC®, or Linux® computer with PCIe slots; or Thunderbolt™ to PCIe card expansion system
- Speedy Performance: Transfers data up to 10x faster than over USB 2.0 connections
- Super-Powered Ports: Supports USB 3.0 bus-powered hard drives, SSDs, DVDs & Blu-ray devices with up to 2.0A per port
- Charging Ports: Supports USB 3.0 charging port handshake, and will simultaneously synch and charge iPads and other devices that support USB 3.0 charging at 1.5A per device
- Broad USB Device Support & Compatibility: Supports storage, hubs, and other USB-IF compliant devices; compatible with USB 2.0 devices
- Supports Hot-Swappable Device Connection: Plug in and disconnect peripherals without shutting off your computer
- Add USB 3.2 (5Gb/s) to Thunderbolt Expansion Systems: Add four speedy USB-A 5Gbps ports to Thunderbolt to PCIe card expansion systems
- Easy Installation: Quick and easy user installation into any available PCIe slot of your computer
- Sonnet Technologies 1 Year Limited Warranty
Upgrade to SuperSpeed USB Performance
PCIe Interface
Powerful Ports
Add Four USB 3.2 Ports to Older Mac Computers with USB 2.0
Perfect for the Extra Slot in Your Multi-Slot Thunderbolt System
Includes
- (1) Sonnet Technologies Allegro 4-Port SuperSpeed USB 3.2 (5Gb/s) PCI Express 2.0 Expansion Card
- (1) Documentation
- Sonnet Technologies 1 Year Limited Warranty
Specs
UASP Support
- Yes
Standards Supported
- OHCI (Open Host Controller Interface)
- EHCI (Enhanced Host Controller Interface)
- xHCI (eXtensible Host Controller Interface)
Hot Swap Support
- Yes
Hot Plug Support
- Yes
External Connectivity
- (4) USB 3.2 Gen 1 Type-A Ports up to 600MB/s
Power Delivery
- USB Battery Charging 1.2 Compliant (up to 7.5W per port)
Card Interface
- PCIe
PCIe Bus Interface
- PCI Express 2.0 x1
PCIe Form Factor
- PCIe x1 full height, half length
- Compatible with PCIe x1 slots or larger
Chipset / Controller
- Fresco Logic
Mac OS Compatibility
- Mac OS X 10.8 Mountain Lion
- OS X 10.9 Mavericks
- OS X 10.10 Yosemite
- OS X 10.11 El Capitan
- macOS 10.12 Sierra
- macOS 10.13 High Sierra
- macOS 10.14 Mojave
- macOS 10.15 Catalina
- macOS 11.x Big Sur
- macOS 12.x Monterey
PC OS Compatibility
- Windows 7 32-bit Edition
- Windows 7 64-bit Edition
- Windows 8 32-bit Edition
- Windows 8 64-bit Edition
- Windows 8.1 32-bit Edition
- Windows 8.1 64-bit Edition
- Windows 10 32-bit Edition
- Windows 10 64-bit Edition
- Windows 11
Other OS Compatibility
- Linux Kernel 5.4.0+
- Ubuntu 20.04.1+
Other Requirements
- Mac (Intel® or M1) or Windows PC via a Thunderbolt to PCIe Card Expansion System
- Mac Pro® (3,1, 4,1, 5,1, or 7,1 [2019]) (compatible with Mac Pro 3,1 PCIe 1.1 slot)
Supported Peripherals
- HDDs, SSDs, DVDs, and Blu–ray devices up to 2A per port
Dimensions
- Height: 3.6 cm (1.4 in)
- Length: 21.6 cm (8.5 in)
- Width: 13.7 cm (5.4 in)
Weight
- 159.0 g (0.35 lbs)
Certifications
- RoHS
RoHS Compliant
- Yes
- USB 3.0 devices require USB 3.0 cables to support SuperSpeed data transfer (up to 5Gb/s). Use of USB 2.0 cables to connect a USB 3.0 device to this card is supported, but data transfer will be limited to USB 2.0 speeds (up to 480Mb/s).
- UASP (USB Attached SCSI Protocol) supported under OS X 10.8.5+ and Windows 8.1+.
Compatibility & Installation Videos
Mac Pro













PC Compatible

Products
Videos
Customer Reviews
… is a marvelous expansive computer experience. Now I have 13 USB ports! This was a no brainer, popped in and it just worked!
I would recommend this product to a friend!
- Reviewer:Reviewer3627069617
We are thrilled to hear that the upgrade to your Mac Pro 5,1 provided such a wonderful experience! Having 13 USB ports must be incredibly convenient. Thank you for sharing your positive feedback with us! Don't hesitate to contact us with further questions, comments, or concerns. https://eshop.macsales.com/Service/
it works perfectly on my Mac Pro 2009 (Flashed 4,1-5,1)A1289 Dual core 2,93. My Mac is optimized for Audio stuff. On the Allegro 3,2 pluged in the ELEKTRON 7Port USB Hub Multi TT USB3.0 + Wavelink WL-UG39DK1 (Hub with 4x 3.0/ 3x 2.0) + Lyndy USB3.0 (7Port) i have many USB Audio equipment....The bottleneck is not the PCI(E) USB Card
I would recommend this product to a friend!
- Reviewer:Marco Mono
Thank you for the feedback on the Sonnet Technologies Allegro PCIe expansion card. We are glad to hear that you are enjoying the card and that it is working perfectly with your setup. Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/
installed in my new MacPro 7.1 and worked correctly.
I would recommend this product to a friend!
- Reviewer:mfaucz
Thank you for your feedback! Great to hear your Sonnet card is working well in your new Mac Pro 7.1!