I got this out of Compellent CT040 which is just Supermicro 836 with a X8DTH-iF. I don't know what it is, others have speculated that it's some sort of remote access card, or some sort of cache acceleration card, or it's just a mystery. The battery looking thing is actually a capacitor. This is going to e-waste, but before i do that I thought I'd see if someone wants to play with this thing. Free for the cost of shipping. It's not heavy, so I can probably ship it in a box 1st class parcel for less than $5 (estimate). Google wallet or Zelle preferred.