Your search for "PWR-500AC-R" revealed the following:

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-7050TX-48-F 32x 10GB Copper 4x 40GB QSFP+ F-B Airflow Switch

SKU: NSN-3974
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7050SX-72-R 48x 10GB SFP+ 2x MXP Back-to-Front Airflow Switch

SKU: NSN-2476
Condition: New
Shipping: Overnight Options
Warranty: 365 days

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

SKU: NSN-4224
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7060CX-32S-F HPE JH576A 32x 100GB QSFP 2x 10GB SFP+ F-B Switch

SKU: NSN-2424
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7050SX-72-F 48x 10GB SFP+ 2x MXP Front-to-Back Airflow Switch

SKU: NSN-2475
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7050QX2-32S-F 32x 40GB QSFP+ 4x 10GB SFP+ F-B Airflow Switch

SKU: NSN-2435
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7050QX-32S-R 32x 40GB QSFP+ 4x 10GB SFP+ Back-to-Front Air Switch

SKU: NSN-1736
Condition: New
Shipping: Overnight Options
Warranty: 365 days
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NEW Arista DCS-7050SX-72Q-R 48x 10GB SFP+ 6x 40GB QSFP+ Back-to-Front Air Switch

SKU: NSN-4910
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Arista DCS-7050TX-48-R 32x 10GB Copper 4x 40GB QSFP+ B-F Airflow Switch

SKU: NSN-1927
Condition: New
Shipping: Overnight Options
Warranty: 365 days