Storage Capacity: Amount of space included with the device for storage. It is measured in either Megabytes (MB) or Gigabytes (GB). 1GB is equivalent to 1024MB.
Memory Type: Type of media format used with the mp3 player in order to store files. Most players feature Internal Hard Drives or Flash Memory but others use expandable memory such as SD Cards, Memory Sticks, Compact Flash, etc.
System Compatibility: Tells you the operating system compatability of the device - often determined by interface or software.
System Connectivity: Type of connector used for connecting your device to a computer to transfer files. Most players use USB 2.0 or Firewire Connectors. USB 2.0 has a transfer rate of 480Mbps; Firewire 400 has a transfer rate of 400Mbps; Firewire 800 has a transfer rate of 800Mbps. However, differences in the architecture of the two interface types allows Firewire it have a faster sustained thoroughput.
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