Device Overview - Huawei USG6000 Series Hardware Manual

HUAWEI USG6000 Unified Security Gateway
Hardware Guide

1.3.2.1 Device Overview

The USG6650/6660 uses an integrated chassis that contains the SPUA (main processing unit),
interface card, power module, and fan module. You can also add some optional modules, such
as hard disk and expansion cards, to improve system reliability and add more ports.
Appearance
Figure 1-43
Issue 03 (2015-01-26)
illustrates the appearance of the USG6650/6660.
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