Retail Box TZ77XE4 motherboard. This was purchased the day IB went on sale. I've been using it mostly as a WCG "cruncher" and Folder with a i7 2600K at 47x DDR3-1866. This would make for a nice daily runner. BIOSTAR TZ77XE4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s... $115 Shipped SOLD! **US/48**... PayPal non-credit card or USPS money order. My Heatware is under PolRoger: http://heatware.com/eval.php?id=68830 I'm not really looking for trades at this time as I'm looking to help fund a future parts purchase.