Tested working with benchmark
Original box not included

Card is missing a piece around the fan. Example in pictures
Serial number in gallery may not match what you get 

Brand: NVIDIA
Model: GTX Titan Xp Collector’s Edition
Model Number: PG611
Maximum Digital Resolution: 7680×4320@60Hz
Display: 1x HDMI, 3x DisplayPort
CUDA Cores: 3840
Boost Clock (MHz): 1582
Graphics Card Power: 250Watt (Power supply needed 600Watt)
Power Connector: 1x PCIe 8-pin 1x PCIe 6-pin
Memory Size: 12GB
Memory Type: GDDR5X
Memory Interface Width: 384-bit
Card Dimensions: Length 10.72″ x Width 1.75″ x Height 4.46″