Summary: Yes, as others have noted, the packaging makes no mention that this card is Mac compatible, but it fired right up and works just fine except for the sleep issue. Running 10.6.8 the card disconnects from the external drives when the computer drive goes to sleep giving an improper disconnect alert.
Summary: I purchased a new PC in 12/11 with Windows 7 Pro 64 bit and realized to late that I did not order enough USB ports for all of my peripherals. I installed this card and it seemed to be okay. However, when I powered down I got a blue screen. I had to pull the plug to turn off the machine.
Summary: Easy installation. Plug and Play and it just "works" We all know we are limited to the Mac Pro's 5 port USB, this will expand it to a total of 9! I use these extra ports for my keyboard and external hard drives. With my tests, I haven't found them to be slower than the stock usb ports.
Summary: These cards are the solution to my USB problems. I am running Windows 7 on a computer I bought in August 2009, and have had problems getting hard drives and my scanner to run from various powered external USB hubs.
Summary: After purchasing several other usb cards that say mac compatible and being told by employees that they would work, I finally found this one that was actually compatible with my mac. Manufacturers need to state what models a device will work with if it doesn't work with all models.
Summary: I bought this after twice being assured that regular PCi USB boards would work in my Powermac G5. They did not. I bought this, plugged it into the slot and it works fine. No mess, no fuss. Hardest part of the installation is getting it out of the packaging.
Summary: Not a whole lot to say, except that I installed this Belkin card in to my MacPro running 10.6.2, and rebooted. That was it. The MacPro recognized the Belkin card and I filled up the 4 slots and retired my D-Link DUB-H7.
Summary: I thought it would be easy to find a PCI card to expand my USB ports on my first generation 8-core Mac Pro. After searching and asking around for a couple hours, I found that the trick was to search for a PCI Express card. This was very easy to install with no software updates.