Your search for "DCS-7300X-64T-LC" revealed the following:
Arista DCS-7300X-64T-LC 48x 10GB Copper 4x 40GB QSFP+ Switch Line Card
SKU: NSB-0027
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 764.99
• Only 2 remaining
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Arista DCS-7300-SUP-D 7300X Series Switch Supervisor Module w/ SSD
SKU: NSB-5398
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 259.99
• Only 2 remaining
Call if you need more
Arista DCS-7300-SUP 7300 Series Supervisor Switch Module
SKU: NSB-9691
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 337.99
• Only 2 remaining
Call if you need more
NEW Arista DCS-7300X-64T-LC 48x 10GB Copper 4x 40GB QSFP+ Switch Line Card
SKU: NSN-2182
Condition: New
Shipping: Overnight Options
Warranty: 365 days