Your search for "jl309a" revealed the following:
HPE Aruba JL309A 100GB BASE-SR4 MPO MMF Optical QSFP28 Transceiver
SKU: NSB-5546
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 263.99
• Only 2 remaining
Call if you need more
NEW HPE Aruba JL309A 100GB BASE-SR4 MPO MMF Optical QSFP28 Transceiver
SKU: NSN-6161
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 349.99
• Only 2 remaining
Call if you need more