If you own an Uwatec Chromis Computer from Scubapro and wish to have the ability to communicate between your dive computer and your PC or Mac the USB and Cradle is what you need. The Cradle and USB allows you to use the LogTRAK software. LogTRAK software allows you to download dive profiles. There are 3 main views each showing a specific part of your dive logs: Profile: showing the graphical data of the dive, Details: about the dive, where you can edit for example the equipment and tank information and Location: which shows your dive site at the world map. By selecting Extras , you can enable/disable warnings that cannot be changed at Square unit via menus. You can also change units of measure from imperial to metric or vice versa. System requirements to use the Shark Dongle with your PC/Mac are as follows: Windows:
XP, Vista, Windows 7 or Windows 8 with at least 140mb of available disk space
JRE 6.x v21 or higher (if not installed it can be downloaded from java.com)
Mac OS X:
Mac OS X 10.6 Snow Leopard or newer with at least 110mb of available disk space
JRE 6.x v21 or higher (starting with MacOSX 10.7 Lion you need to install Java separately, for more info visithttp://support.apple.com/kb/DL1421)
This product has a limited warranty of 12 months.