Your search for "pwr-500-dc-f" revealed the following:
Arista DCS-7280SE-72-R 48x 10GB SFP+ 2x 100GB MXP Back-to-Front Airflow Switch
SKU: NSH-6110
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 361.99
• 4 in stock
Call if you need more
NEW Arista DCS-7050TX-72-F 48x 10GB Copper 6x 40GB (2xMXP) F-B Airflow Switch
SKU: NSN-6525
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Arista DCS-7020SR-24C2-F 24x 10GB SFP+ 2x 100GB QSFP F-B Air Switch
SKU: NSH-8203
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Arista DCS-7050TX-72-F 48x 10GB Copper 6x 40GB (2xMXP) F-B Airflow Switch
SKU: NSH-7464
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7050SX-96-F 48x 10GB SFP+ 4x MXP Front-to-Back Airflow Switch
SKU: NSN-2519
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7020SR-24C2-F 24x 10GB SFP+ 2x 100GB QSFP F-B Airflow Switch
SKU: NSN-4911
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7160-48YC6-F 48x 25GB SFP+ 6x 100GB QSFP Front-to-Back Air Switch
SKU: NSN-2382
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7020TRA-48-F 7020R Series 48x GE RJ45 6x 10G SFP+ F-B Air Switch
SKU: NSN-4116
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7020TR-48-R 48x 1GB RJ45 6x 10GB SFP+ B-F Airflow Switch
SKU: NSN-3607
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