A Detailed Look
The Antec Signature Series 850W power supply features a good-looking, scratch resistant black matte finish.  The steel enclosure measures 180mm (7.1”) long and uses a single 80mm fan on the back for cooling, which is becoming a rarity these days.  The majority of new PSUs use a large bottom mounted fan but as we will see later when we open up the Signature 850, there is a good reason that Antec went with a traditional rear mounted 80mm fan.

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The backside panel features an open grill area over the fan and includes a power receptacle and master On-Off switch.  The honey comb grill on the back allows air to exhaust out of the power supply with minimal restriction and turbulence.

The fan speed is automatically controlled by the internal component temperature (speeds up as the combined load and temperature increases) via an onboard controller.  The 80mm, 7 blade Beta SL fan (D08A-12PS3) is manufactured by Nidec and is rated for .50A when operating on 12 VDC. 

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The Antec Signature Series 850W power supply comes with a very good assortment of hard wired and modular cables and connectors.  All of the cables are covered with black plastic mesh sleeving and measure approximately 18” long (to the first connector). 

    Main power connector (24-pin/20-pin)
    EPS 12V 8-pin (4+4-pin)
    (4) PCI Express (6-pin and 6+2-pin)
    (9) Peripheral Optical/HDD (4-pin)
    (9) Peripheral Serial ATA (15-pin)
    (1) Peripheral FDD (4-pin)

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There are four modular cable sockets on the front of the PSU.  The two 6-pin black sockets are used for the modular peripheral device cables and the two 8-pin red sockets are used for additional PCI-E cables.


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