Your search for "DCS-7500E-SUP-D" revealed the following:

Arista DCS-7500E-SUP-D 2x 1GB RJ-45 2x USB 100GB SSD Switch Supervisor Module

SKU: NSB-5355
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

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