Your search for "qsfp-100g-erl4" revealed the following:

Arista QSFP-100G-ERL4 100GBASE-ERL4 30-40km SMF Transceiver QSFP28

SKU: NSH-9088
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Arista QSFP-100G-ERL4 100GBASE-ERL4 30-40km SMF Transceiver QSFP28

SKU: NSN-5288
Condition: New
Shipping: Overnight Options
Warranty: 365 days