Your search for "finisar fclf" revealed the following:
NEW Cisco A9K-40GE-L 40x 1GB SFP (Low Queue) Router Line Card
SKU: NSN-5101
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7500R2A-36CQ-LC 7500R Series 36x 100GB QSFP28 Switch Line Card
SKU: NSN-9200
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco C9600-LC-48YL C9600 Series 48x 25GB SFP28 Switch Line Card
SKU: NSH-9256
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper MPC5EQ-40G10G 24x 10GB SFP+ 6x 40GB QSFP+ Router Line Card
SKU: NSN-3556
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper MPC5E-40G10G-IRB MX2000 Series 6x 40GB QSFP+ 24x 10GB SFP+ Line Card
SKU: NSH-8689
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7500R2AK-36CQ-LC 7500R Series 36x 100G QSFP100 Switch Line Card
SKU: NSN-3609
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Arista DCS-7800R3-48CQM-LC 48x 100GB QSFP28 w/ MACsec Router Line Card
SKU: NSB-0973
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7500R2AM-36CQ-LC 36x 100GB QSFP100 Switch Line Card
SKU: NSN-9201
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Arista DCS-7300X-64T-LC 48x 10GB Copper 4x 40GB QSFP+ Switch Line Card
SKU: NSN-2182
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco CBR-8D31-16U31-SP cBR-8 Converged Broadband CCAP Router Line Card
SKU: NSB-5153
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days