This high quality 11-speed cassette (10-42T) is in mint condiition. It's formal nomenclature is XG-1150 and typically sells for ~$140-150
From a vendor web site:
The XG-1150 cassette has all the performance benefits of Sram's higher-end 11-speed cassettes but makes use of different materials and manufacturing processes to keep the costs down. Individually-machined cogs are pinned together which adds value, but doesn't skimp on strength or durability. Compatible with XD drive bodies, the XG-1150 is an excellent replacement cassette if you don't want to blow your upgrade budget.
Machined cogs are pinned together for added value
Same strength and durability as Sram's higher-end cassettes
Compatible w/ XD drive bodies