Your search for "PWR-500AC-R" revealed the following:
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-7280SRA-48C6-R 48x 10G SFP+ 6x 100G QSFP B-F Air Switch
SKU: NSN-4308
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Arista DCS-7020SR-24C2-R 24x 10GB SFP+ 2x 100GB QSFP B-F Air Switch
SKU: NSH-8204
Condition: Seller refurbished
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
Arista DCS-7060CX-32S-F HPE JH576A 32x 100GB QSFP28 2x 10GB SFP+ F-B Air Switch
SKU: NSH-7470
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7280SR-48C6-M-R 48x 10GB SFP+ 6x 100GB QSFP28 B-F Airflow Switch
SKU: NSN-0397
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-7160-32CQ-F 32x 100GB QSFP100 Front-to-Back Airflow Switch
SKU: NSN-2384
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