I reached out to them via ebay. They said that the drive is indeed 7.68TB. That the sticker that says 960GB is incorrect and was applied by a vendor prior to them (SPD) receiving the unit. Sounds like they knew about the sticker mixup.
SMART stats seem to match that of a 7.68TB,
Code:
=== START OF INFORMATION SECTION ===
Vendor: SAMSUNG
Product: PA33N7T6 EMC7680
Revision: EQHE
Compliance: SPC-4
User Capacity: 7,680,475,267,072 bytes [7.68 TB]
Logical block size: 512 bytes
Physical block size: 4096 bytes
LU is resource provisioned, LBPRZ=1
Rotation Rate: Solid State Device
Running f3write/f3read on it now to verify it is 7.68TB. So far it seems like SPD is right and that the drive is legit!