Your search for "PWR-500-DC-F" revealed the following:
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-F 32x 100GB QSFP100 Front-to-Back Airflow Switch
SKU: NSN-2384
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-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-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
Arista DCS-7280TRA-48C6-F 48x 10G RJ45 6x 100G QSFP AlgoMatch F-R Switch Router
SKU: NSB-5388
Condition: Seller refurbished
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-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-7050QX2-32S-F 32x 40GB QSFP+ 4x 10GB SFP+ F-B Airflow Switch
SKU: NSN-2435
Condition: New
Shipping: Overnight Options
Warranty: 365 days