On April 4th, 2017, the MagicBand 2 version of this band was released. The barcode SKU of this is 400020058508.
If you want to order this band, you can do so by clicking this link which will take you right to the product.
The Star Wars Darth Vader MagicBand released on April 11th, 2016. Disney’s merchandise SKU barcode for this MagicBand is 400000091136.