Looks to be a pretty new powerbank released by anker. The price tracker that I use says that it has only been up on amazon for about 18 days so there is a chance it might come down more in price in the future. Both the black and the blue versions have the 30% discount coupon that you can clip to lower the price to about $35.
[US] Anker Portable Charger, 511 Power Bank (PowerCore Fusion 5K) $34.99
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