Your search for "pwr-500ac-r" revealed the following:

NEW Arista DCS-7160-48TC6-F 48x 10GB Copper 6x 100GB QSFP F-B Air Switch

SKU: NSN-2432
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280SE-64-F 48x 10GB SFP+ 4x 40GB QSFP+ Front-to-Back Air Switch

SKU: NSN-2462
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280SR-48C6-M-F 48x 10GB SFP+ 6x 100GB QSFP F-B Airflow Switch

SKU: NSN-2365
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7050TX-72Q-F 48x 10GB Copper 6x 40GB QSFP+ F-B Airflow Switch

SKU: NSN-3995
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7060SX2-48YC6-F 48x 25GB SFP25 6x 100GB QSFP F-B Airflow Switch

SKU: NSN-3765
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280SE-72-F 48x 10GB SFP+ 2x 100GB MXP Front-to-Back Air Switch

SKU: NSN-2427
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280TRA-48C6-R 48x10G RJ45 6x100G QSFP AlgoMatch RF Switch Router

SKU: NSN-6781
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7020TRA-48-R 7020R Series 48x GE RJ45 6x 10G SFP+ B-F Air Switch

SKU: NSN-4117
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280SE-68-F 48x 10GB SFP+ 2x 100GB QSFP100 F-B Airflow Switch

SKU: NSN-1667
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7280SRA-48C6-R 48x 10G SFP+ 6x 100G QSFP B-F Air Switch

SKU: NSN-4308
Condition: New
Shipping: Overnight Options
Warranty: 365 days