Your search for "MMA4Z00-NS400" revealed the following:

NEW nVidia Mellanox MMA4Z00-NS400 400GBASE-SR4 850nm DOM MMF OSFP Transceiver

SKU: NSN-0230
Condition: New
Shipping: Overnight Options
Warranty: 365 days

$ 925.99

$ 929.99

• Only 2 remaining
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nVidia Mellanox MMA4Z00-NS400 400GBASE-SR4 850nm 50m DOM MMF OSFP Transceiver

SKU: NSB-4265
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

$ 887.99

$ 892.99

• Only 2 remaining
Call if you need more