So what is this unit ? 
http://www.ebay.com/itm/Bitmain-s-NEWEST-ANTMINER-S3-450GH-265W-Hash256-Bitcoin-Miner-S5-same-chips-/231499804522

"Bitmain’s NEWEST ANTMINER S3++ 450GH/265W Hash256 Bitcoin Miner S5 same chips"
This is not S3+ or S3. This is S3++!!!
It is installed with the state-of-the-art hash256 chips, and is the latest upgradation of S3+. Compared with the 355W nominal power consumption of its predecessor S3+, the power consumption of this newest S3++ is as low as 265W!!!  Lower power consumption and higher mining efficiency means more income, more overlock room, lower temperature and quieter mining experience!!! The data sheet of S3++ is as follows:

Hash rate：450GH/s (with excellent overlock potency)
Power consumption：265W (in nominal frequency)
Voltage input：12V DC (2~4 6pin ports are required)
Number of cooling fans：2

upgradation lol