Huawei E583C Router Specifications
•HSPA/UMTS 2100/900 MHz
•EDGE/GPRS/GSM 1900/1800/900/850 MHz
•HSUPA (UL) data service of up to 5.76 Mbps
•HSDPA (DL) data service of up to 7.2 Mbps
•Plug and play (PnP)
•Internal memory: 128MB Flash, 64MB Memory
•Power supply: AC: 100V~240V; DC: 5V, 1A
•Battery : Type: Li (Rechargeable); Capacity: 3.7V, 1400mAh; Maximum working time: 3.5 hours; Maximum standby time: 100 hours
•LED: OLED screen
•key-press: power switch, WPS switch
•Dimensions (D * W * H): 96.0mm*57.0mm*11.5mm
•Weight: about 90g (including the battery)
•USB Extension Cable, easy to connect
•Standard mini USB interface
•Built-in WCDMA and WLAN high gain antenna
•External main diversity antenna interface
•Micro Secure Digital Memory (Micro SD) Card

•Windows Windows XP/ Windows Vista/ MAC operating system (OS) 10.4 and above

Design wise, the new 3.5G MiFi Huawei E583C hotspot looks great. With speeds of 5.67Mbps upstream and 7.2Mbps downstream a possibility it is also quite fast, dependent on signal of course.
Other features on the device include a microSD slot for storage (up to 32GB) as well as the addition of a 1 inch OLED screen to provide details of connectivity and battery life.