Your search for "DCS-7500E-12CM-LC" revealed the following:
Arista DCS-7500E-12CM-LC 7500E Series 12x 100GB MTP/MPO Switch Line Card
SKU: NSB-7187
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 361.99
• Only 2 remaining
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NEW Arista DCS-7500E-12CM-LC 7500E Series 12x 100GB MTP/MPO Switch Line Card
SKU: NSN-9209
Condition: New
Shipping: Overnight Options
Warranty: 365 days