Your search for "OSFP-400G-XDR4" revealed the following:
Arista OSFP-800G-2XDR4 8x 100GBASE-FR 2km Over Parallel SMF OSFP Transceiver
SKU: NSB-2126
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,203.99
• 32 in stock
Call if you need more
Arista QDD-400G-XDR4 400GBASE-XDR4 2km over parallel SMF QSFP-DD Transceiver
SKU: NSB-5244
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 133.99
• 97 in stock
Call if you need more
NEW Arista QDD-400G-DR4 400GBASE-DR4 500m parallel SMF QSFP-DD Transceiver
SKU: NSN-2257
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 619.99
• Only 1 remaining
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Arista OSFP-400G-SR8 400GBASE-SR8 100m over parallel OM4 MMF OSFP Transceiver
SKU: NSB-5208
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 822.99
• 11 in stock
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Arista QDD-400G-DR4 400GBASE-DR4 500m parallel SMF QSFP-DD Transceiver
SKU: NSB-5243
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 606.99
• Only 2 remaining
Call if you need more
Arista OSFP-400G-XDR4 400GBASE-XDR4 up to 2km over parallel SMF OSFP Transceiver
SKU: NSB-5210
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Arista OSFP-400G-DR4 400GB BASE-DR4 500m Over Parallel SMF OSFP Transceiver
SKU: NSB-5209
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista QDD-400G-XDR4 400GBASE-XDR4 2km over parallel SMF QSFP-DD Transceiver
SKU: NSN-6733
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Arista QDD-400G-SR8 400GB BASE-SR8 100m Parallel OM4 MMF QSFP-DD Transceiver
SKU: NSB-5242
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days