Unfortunately, these cards usually only offer rear ports, and only two ports – but there’s a big advantage.Ī separate controller means a separate USB 3.0 bus! This means stuff attached to the other USB 3.0 ports are not sharing the bus bandwidth.
#Genesys logic usb hub driver free
These can be had for about $12 a piece, and if you have free PCI-e x1 slots, it’s definitely a possibility. It’s probably something not often practiced – but you can solve the lack of ports issue with a PCI-E to USB 3.0 adapter. But now more USB 3.0 devices can be had at reasonable costs – sometimes even at the same prices as their USB 2.0 bretheren – doesn’t it make sense to have more ports? To hub, or not to hub?īefore I actually review the device in question – we should probably review whether having a hub is a good idea in the first place. It’s a small price to pay for a drastic increase in performance – no longer are we restricted to seeing rates of 35MB/s and below (sometimes quite significantly lower) when talking to external USB hard drives – we can now attain sequential rates limited by the spinning media in such drives even without UASP – and with UASP to overcome problems with command latency and lack of queueing in the older Bulk-only Transport mode of mass storage, performance improves even more!īut there was always one thing nagging me – while USB 3.0 is obviously great, and the host ports are backward compatible down to USB 2.0 and 1.1, USB 3.0 ports are always rather scarce! I guess we can put this down to cost cutting on behalf of the chipset makers and motherboard manufacturers – high speed USB 3.0 PHYs were not easy to make cheaply, at least initially.
![genesys logic usb hub driver genesys logic usb hub driver](https://i.pinimg.com/originals/2e/7a/8c/2e7a8ce01f005f55ec7216fdafc10710.jpg)
the USB 3.0 B-connectors will not mate with USB 1.1/2.0 B-sockets In order to do all of this as cheap as possible without breaking backwards compatibility – they had to introduce a new row of conductors buried inside the A connector and straddling on the side of the various types of B connectors creating cable-compatibility issues – i.e. USB 3.0 ups the physical layer rate from the 480Mbit/s to a more reasonable 5Gbit/s – and is on its way to 10Gbit/s, while alleviating shortcomings in power delivery by upping the current limit from 0.5A to 0.9A without the battery charging/supercharging extension. Compared to USB 2.0, USB 3.0 is a miracle long overdue.