The Hub has three USB 2.0 slots and via a respective slot for SD cards, MS cards, TF card and M2 card, and thus actually all common formats for storage media. What started as ambitious amateur photographers is very convenient for me, I can save the Vandesail hub any adapter in the past to read and transferred my photos on the computer were necessary. In addition to those specified in the product description operating systems Win95 / 98 / Me / 2000 / XP / Win 7, Linux2.4andMac OS8.5 the HUB runs smoothly even under Win 8. Even long hours of continuous operation, the device will not begin to warm. However, the HUB has as already noted, only via USB 2.0 and not the much faster USB 3.0 standard, but what a shame is to get over. The HUB is an on, connected with a 90 cm long cable adequate to the computer, the stroke itself has a mini-USB port and does not have a much more common micro-USB port, which is kind of annoying. Since you can not divert the HUB so to load up to three devices at the outlet with a mobile phone charger cable or divert the like, since just all mobile phones, tablets, etc. have a USB Micro connection. Therefore, four earned stars for a thoroughly practical device.