Sonnet Allegro USB-A 4-Port USB 3.2 Gen 1 PCIe Card Mac Windows Linux 5Gbps

First I looked on the internet for reviews of different cards, and Allegro was at the top of the list. Do they require drivers or electrical hookups in the computer, etc, in order to function properly--no, Allegro doesn't. The important question for me is: can you really use 4 USB ports at one time with this card? Based on my experience (I have purchased 3 USB C 2 port cards, and 1 USB 4 port 3.2 card), the Allegro card is plug and play and doesn't require a driver or electrical cable hookup. And the card works properly: In one of my computers (HP z2 G9) I have two cards installed: USB C and USB 3.2 and there is no problem. Be careful of buying the cheapo cards!

It works! Excellent throughput. (Tested with Blackmagic Designs disk tester on all my devices.) Mac OS High Sierra. I had a USB 3.0 4-port that fail on me (Inateck) just like a previous reviewer. The ports stopped working AND creating some conflicts on native USB ports such as external devices (SD, portable drives, etc.) preventing them to mount. Extremely happy and relieve that Sonnet was easy to install. It fit snug in the PCI-E slots and the ports line are aligned better than the former card. I was able to fully plug in Lexar UHS-II SD card reader (~250MB/s). I put it in slot 4 to avoid blocking the GPU fan, and it did not interfere with the full size hard disk mounted to drive sled above it. I can’t attest for the durability at this point. Installed yesterday.

I installed my Sonnet Allegro USB 3.0 card in a 2009 Mac Pro, running El Capitan. No third party drivers were needed. The card is working flawlessly, unlike two other brands cards I'd tried on earlier releases of OS X. Of course, I tested it for speed ... (best viewed with fixed width font) Write Read Drive Interface Drive model, capacity ----- ---- ------- --------- ----------------------- 1650 1922 ramdisk 250 265 (root) SATA 3Gb Crucial_CT960M500SSD1, 1 TB Note: SSD 150 144 backups SATA 3Gb Hitachi HDS724040ALE640, 4 TB 120 118 tm SATA 3Gb Western Digital WDC WD30EZRX-00SPEB0, 3 TB 31 33 wd5 USB 2.0 Western Digital WD My Book 1230, 5 TB 150 150 wd5 USB 3.0 Western Digital WD My Book 1230, 5 TB The interesting two lines are the last two … it’s the same disk drive, tested first via USB 2.0, and then via USB 3.0. In short, I can now write to my external USB 3.0 drive at SATA-like speeds!

I wanted USB 3.0 connectivity for my Mac Pro (Mid 2012). As I have two ATI graphics cards in my computer, I was concerned that an additional PCI card would not fit inside it. But, as this card was not that expensive, I decided I'd try it and see. The card arrived well packaged and quickly after my order and was very simple to install. It fit snuggly and easily into the last available PCI slot without a problem. The card required no additional drivers or software and was recognized by OS X El Capitan 10.11.3 upon reboot without issue. Currently I have only my iPhone plugged into it. I wish I would have purchased it a while back as installation was a cinch and it appears to be working without any glitches. It just works. True plug and play... just like things should be on a Mac.

Works fine with my AM4 system running Fedora KDE. I plugged it in and it worked straight away, just as well as the ports built into the motherboard. However, there is a catch: it uses the Fresco Logic FL1100 chipset, which only supports PCIe 2.0 x1. This limits you to a theoretical maximum of 4Gbps for the whole card, and in the real world you probably won't see more than 2-3. It doesn't do full USB 3 speed, even on a single port. To get full speed, you need either a card that supports PCIe 3.0 x1 (8Gbps), or one with a longer x2 or x4 connector. The fastest device I have a type A cable for is an external hard drive, which maxes out at about 1.6Gbps on my motherboard's USB 3.2 ports. This card has no problem matching that speed. This will do the job of adding a few extra USB ports for hard drives and such, but for applications where you need high speed on multiple ports at once, stick to your motherboard's built-in ports or get a better card. I will be sure to update this review if I run into any problems. Update: I dug up the cable to hook up a couple of external SSDs, and the maximum transfer speed turned out to be a little slower, but similar to my PC's built-in USB 3.2 Gen 1 ports - between the two drives, the motherboard ports were slightly faster. The average between the two drives was 388.5 MB/s (3,108 Mbps) on the onboard ports and 358.7 MB/s (2,870 Mbps) on the Allegro. These drives are capable of maxing out a 5Gbps port, so the bottleneck is the ports, not the drives. All that is to say that it does come within about 8% of an onboard port in terms of real-world performance, but you will be bottlenecked by the PCIe 2.0 x1 link if you try to do high-speed transfers over more than one port at a time.

Working GREAT without incident on a 2012 Mac Pro 5,1 tower modified for heavy 3D workflows with no dropped connections so far for two external drives. If anything changes, I will file a follow-up report

I expected it to fit my PC and it does. I don't have any way to measure its performance.

This card is of a much higher quality than other PCIE USB 3 cards. Additionally it seems to work well with my 2011 MacPro. I'm getting ~320MB/s Read/Write speeds with my SanDisk Extreme Portable SSD. This is rated to 550 MB/s speed on USB C. This strikes me as very fast performance. I had purchased the FebSmart 4 Port USB 3.0 Card and it did not work. This card does without a problem. It is clearly of a much higher quality. The electronics on the board are visibly more robust and the fitment of the USB 3.0 ports is of higher quality.

Antes tenía una de esas tarjetas usb 3.0 más baratas y solo daban problemas: discos que no aparecían, velocidades inestables. Todo esto desaparece con esta tarjeta. Es más cara pero merece la pena porque es instalarla, es reconocida por el sistema y funciona perfecta. Recomendable. Equipo: Mac pro 5.1, mac os sierra

普通に使えています

Klockren väl fungerande produkt. Men lämpar sig inte för användning av tex SSD.

Sonnet Technologies USB3-4PM-E - Scheda PCIe "Allegro", a 4 porte USB 3.0 Montata su MAcPro versione 10.8.5 / 10.9.5 / 10.10 ( 3 partizioni,un solo hd ) tutto va bene , viene riconosciuta immediatamente , senza driver aggiuntivi , quindi darebbe bene anche per un hackintosh . ma sconsiglio in quel caso ,perché immotivato il costo , per motivi tecnici questa scheda non richiede alimentazioni aggiuntive ,cosa fondamentale in un mac pro " MacPro5,1 / meta 2010 " cosa invece molto fattibile in un hackintosh ,che permetterebbe un acquisto diverso/economico in quanto sarebbe assai seccante dover dare alimentazioni aggiuntive con attacchi che il mac non ha , si entra in un giro di cavi convertitori ,spinotti, che c'e' da impazzire per trovarli e spendere ,spesso tanto , a conti fatti , questa scheda che è di ottima qualità sia nel progetto che nei materiali , basta guardarla un secondo per capire che è fatta bene , nessuno potrebbe dire il contrario , ho visto schede che i componenti sembrano disegnati..per risparmiare sul prodotto , qui tutto è di qualità e si sa , la qualità si paga .. se motivata . qui penso sia uno di quei pochi casi ,che il marchio non vale più del prodotto.. ;) la consiglio vivacemente :D poi nei test ,è una bomba ! finalmente gli hd 3.0 esterni , sono vivi...

Llego antes de lo previsto, bien empacada y solo es necesario conectarlo en una entrada pci y ya...... ningún problema en Mac