Your search for "Finisar FTLF8524" revealed the following:
Finisar FTLF8519P3BTL-TM 850nm LC 1 GB For T-Mobile Transceiver SFP
SKU: NSB-9936
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Finisar FTLX8574D3BCL-HD BASE-SR 10 Gigabit 850nm Short Range MMF Transceiver SF
SKU: NSB-8752
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Finisar FCLF8522P2BTL-N1 1GB BASE-T RJ45 N332-00374 Transceiver SFP
SKU: NSB-1768
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Finisar FTLX8573D3BTL-TM 10GB BASE-SR 850nm MMF SFP+ Transceiver
SKU: NSB-9914
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Finisar FCLF-8520-3 1GB BASE-T RJ45 Optical SFP Transceiver
SKU: NSB-7107
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Finisar FCLF-8520-3 1GB BASE-T RJ45 Optical SFP Transceiver
SKU: NSN-9305
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Finisar FCMJ-8520-3 1GB BASE-T RJ45 Optical SFP Transceiver
SKU: NSB-1437
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days