Your search for "sfp-1g" revealed the following:
Dell SFP-1G-ZX 1GB BASE-ZX Extended-Reach 1310nm 80km SMF LC SFP Transceiver
SKU: NSB-5920
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista SFP-1G-LX Optical 1 Gigabit BASE-LX Transceiver SFP
SKU: NSN-6609
Condition: New
Shipping: Overnight Options
Warranty: 365 days
HPE Aruba J4860D 1GB BASE-LH 1550nm SMF LC SFP Transceiver
SKU: NSB-5556
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Brocade FESX624HF+2XG-PREM 24x 1G SFP 4x 1G Combo 2x 10G XFP Switch
SKU: NSN-3369
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco FPR2K-NM-8X1G FirePower 2100 Series 8x 1GB SFP Firewall Module
SKU: NSH-9917
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco CWDM-SFP-1550 1GB BASE-CWDM Fibre Channel 1550nm SFP Transceiver
SKU: NSN-6253
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Extreme 16538T 24x 1G SFP 4x 1G Combo 4x 10G SFP+ (TAA) Switch
SKU: NSH-8230
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper EX-SFP-1GE-LH 1GB BASE-LH 1550nm SMF LC SFP Transceiver
SKU: NSH-4931
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Cisco FPR2K-NM-6X1SX-F FirePower 6x 1G SFP Fiber (FTW) Firewall Module
SKU: NSB-5666
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper CTP-SFP-1GE-LX 1GB BASE-LX 1310nm SMF SFP Transceiver
SKU: NSN-0776
Condition: New
Shipping: Overnight Options
Warranty: 365 days