Your search for "pwr-500ac-r" revealed the following:
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-R 48x 10GB SFP+ 2x 100GB QSFP100 B-F Airflow Switch
SKU: NSN-3814
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7160-48TC6-R 48x 10GB Copper 6x 100GB QSFP B-F Airflow Switch
SKU: NSN-2456
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7050TX-96-F 48x 10GB Copper 12x 40GB (4x MXP) F-B Air Switch
SKU: NSN-4118
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7050SX2-72Q-F 48x 10GB SFP+ 6x 40GB QSFP+ F-B Airflow Switch
SKU: NSN-2393
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7160-32CQ-R 32x 100GB QSFP100 Back-to-Front Airflow Switch
SKU: NSN-3758
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7160-48YC6-R 48x 25GB SFP+ 6x 100GB QSFP Back-to-Front Air Switch
SKU: NSN-1845
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7060SX2-48YC6-R 48x 25GB SFP28 6x 100GB QSFP B-F Airflow Switch
SKU: NSN-5791
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7050SX-72Q-F 48x 10GB SFP+ 6x 40GB QSFP+ Front-to-Back Air Switch
SKU: NSN-2402
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7020SR-24C2-R 24x 10GB SFP+ 2x 100GB QSFP B-F Air Switch
SKU: NSN-4912
Condition: New
Shipping: Overnight Options
Warranty: 365 days