Your search for "msb7790" revealed the following:
nVidia Mellanox MSB7790-EB2F 920-9B010-00FE-0D0 36x 100GB QSFP28 EDR B-F Switch
SKU: NSB-9563
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 764.99
• Only 1 remaining
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nVidia Mellanox MSB7790-ES2F 920-9B010-00FE-0D1 36x 100GB QSFP28 EDR B-F Switch
SKU: NSB-9562
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 403.99
• Only 2 remaining
Call if you need more
nVidia Mellanox MSB7790-ES2R 920-9B010-00RE-0D0 36x 100GB QSFP28 EDR F-B Switch
SKU: NSB-9564
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days