Your search for "SFP-1G" revealed the following:
NEW Cisco A9K-48X10GE-1G-TR 48x 10GB SFP+ (Transport Optimized) Router Line Card
SKU: NSN-6643
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco IE-4000-8S4G-E IE 4000 Series 8x FE SFP 4x 1GB Combo Switch
SKU: NSH-9954
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper RX-10KM-SFP 1GB BASE-LX 1310nm SMF SFP Transceiver
SKU: NSH-5022
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper PB-4GE-TYPE1-SFP-IQ2 4x 1GB SFP IQ2 Type 1 PIC Module
SKU: NSN-2854
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper SRX-SFP-1GE-LH 1GB BASE-LH SMF Optical SFP Transceiver
SKU: NSH-5020
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Dell N3224F-ON-RA 24x 1GB SFP 4x 10GB SFP+ 2x 100GB QSFP28 B-F Air OS6 Switch
SKU: NSB-9803
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco ASR-920-4SZ-A 2x 1GB RJ45 4x 10GB SFP+ AC Router w/ Metro Access
SKU: NSN-2298
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper EX-SFP-GE10KT13R15 1GB BASE-BX-U SMF SFP Transceiver
SKU: NSN-5740
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Alcatel-Lucent OS6860-48-US OmniSwitch 6350 48x 1GB RJ-45 4x SFP+ Switch
SKU: NSN-0584
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper SRX-SFP-1GE-LX LX 1GB BASE-LX SMF LC Transceiver SFP
SKU: NSN-5902
Condition: New
Shipping: Overnight Options
Warranty: 365 days