Your search for "SFP-10G-SR-X" revealed the following:
NEW Cisco SFP-10G-SR-X 10GB BASE-SR 850nm Multi Rate MMF SFP+ Transceiver
SKU: NSN-9457
Condition: New
Shipping: Overnight Options
Warranty: 365 days
$ 207.99
• Only 1 remaining
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Cisco SFP-10G-SR-X 10GB BASE-SR 850nm Multi Rate MMF SFP+ Transceiver
SKU: NSH-3035
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 112.99
• 65 in stock
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Cisco N9K-C9372PX-E 48x 10GB SFP+ 6x 40GB QSFP+ Back-to-Front Airflow Switch
SKU: NSB-4719
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 229.99
• Only 2 remaining
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Cisco Meraki MS355-24X-HW 16x 1GB 8x mGig UPoE 4x SFP+ 2x QSFP+ Unclaimed Switch
SKU: NSH-9879
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 1,116.99
• Only 2 remaining
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Cisco N9K-C9332C Nexus 9000 32x 100GB QSFP28 2x 10GB SFP+ B-F Airflow Switch
SKU: NSB-7711
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,039.99
• Only 2 remaining
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Cisco N9K-C9332C Nexus 9000 32x 100GB QSFP28 2x 10GB SFP+ F-B Airflow Switch
SKU: NSB-7780
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
$ 2,125.99
• Only 2 remaining
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NEW Juniper SRX-MIC-10XG-SFPP SRX Series 10x 10GB SFP+ Services Gateway Module
SKU: NSN-2109
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco Meraki MS355-24X-HW 16x 1GB 8x mGig UPoE 4x SFP+ 2x QSFP+ Unclaimed
SKU: NSN-3597
Condition: New
Shipping: Overnight Options
Warranty: 365 days