Your search for "sfp-1g" revealed the following:

Precision PRE-SFP-TMI-CSCO 1GB BASE-T RJ-45 SFP Transceiver

SKU: NSB-9038
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW HPE JG306C 3600 SI Series 24x Fast Ethernet PoE+ 4x 1G SFP Switch

SKU: NSN-3831
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Juniper SRX5K-40GE-SFP SRX 5000 Series 40x 1GB SFP Gateway Module

SKU: NSH-6639
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

Osi QFX-SFP-1GE-T-OSI 1GB BASE-T 100m RJ-45 Juniper Compatible SFP Transceiver

SKU: NSB-1129
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 16538 X440-G2-24x-10GE4 24x 1G SFP 4x 1G Combo 4x 10G SFP+ Switch

SKU: NSN-4212
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco C9300-48S-A Catalyst 9300 48x 1GB SFP 1x Expansion Module Slot Switch

SKU: NSB-6998
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco C9300-48S-E Catalyst 9300 48x 1GB SFP 1x Expansion Module Slot Switch

SKU: NSN-1272
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco C1000-48T-4G-L Catalyst 1000 Series 48x 1GB RJ45 4x 1GB SFP Switch

SKU: NSN-0342
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco FPR2K-NM-6X1SX-F FirePower 6x 1G SFP Fiber (FTW) Firewall Module

SKU: NSN-7623
Condition: New
Shipping: Overnight Options
Warranty: 365 days