Your search for "MMS1W50-HM" revealed the following:
Nvidia Mellanox MMS1W50-HM 200GB 1310nm 2km Duplex LC SMF QSFP56 Transceiver
SKU: NSB-0860
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 158.99
• 99 in stock
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NEW Nvidia Mellanox MMS1W50-HM 200GB 1310nm 2km Duplex LC SMF QSFP56 Transceiver
SKU: NSN-0685
Condition: New
Shipping: Overnight Options
Warranty: 365 days