Your search for "q28-128gfc-sw4" revealed the following:
Dell Q28-128GFC-SW4 Quad 32GFC100m MMF MPO-12 850nm QSFP28 Transceiver
SKU: NSB-5937
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 111.99
• Only 2 remaining
Call if you need more
NEW Dell Q28-128GFC-SW4 Quad 32GFC100m MMF MPO-12 850nm QSFP28 Transceiver
SKU: NSN-9101
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 118.99
• Only 2 remaining
Call if you need more