Your search for "pwr-500-dc-f" revealed the following:

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-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-7020TR-48-F 48x GE RJ45 6x 10G SFP+ F-B Airflow Switch

SKU: NSN-2447
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-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-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-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-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-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-7160-32CQ-R 32x 100GB QSFP100 Back-to-Front Airflow Switch

SKU: NSN-3758
Condition: New
Shipping: Overnight Options
Warranty: 365 days