Your search for "Finisar FTLF8528" 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 FTLC1151RDPL2 100GB BASE-LR4 1310nm QSFP28 Transceiver
SKU: NSB-1160
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