- Notes, cautions, and warnings
- Revision history
- Introduction
- Technical specifications
The following table describes the USB port specifications of VxRail E660, E660F, and E660N:
Front | Rear | ||
---|---|---|---|
USB port type | No. of ports | USB port type | No. of ports |
USB 2.0-compliant port | One | USB 2.0-compliant port | One |
Micro-USB, iDRAC Direct | One | USB 3.0-compliant port | One |
The USB 2.0 specifications provide a 5 V supply on a single wire to power connected USB devices. A unit load is defined as 100 mA in USB 2.0, and 150 mA in USB 3.0. A device may draw a maximum of 5 unit loads (500 mA) from a port in USB 2.0; 6 (900 mA) in USB 3.0.
The USB 2.0 interface can provide power to low-power peripherals but must adhere to USB specification. An external power source is required for higher-power peripherals to function, such as external CD/DVD Drives.