Appears to be two variations of the latest black Points Plus card from Putter's in Las Vegas. On one card the reverse barcode is 9mm high and 45mm wide with the reverse text starting close to the mag stripe. On the new found variation the reverse barcode is 10.5mm high and 42mm wide with more space between the mag stripe and the reverse text.

Here's scans of the common front and the new and old backs.