Your search for "DCS-7504E-BND" revealed the following:

NEW Arista DCS-7504E-BND 7500E Series 7504E Switch Chassis Bundle

SKU: NSN-4811
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Arista DCS-7504E-BND 7500E Series 7504E Switch Chassis Bundle

SKU: NSH-7482
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days