Your search for "SFP-1G" revealed the following:

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

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 HPE Aruba JW675A 7240XM 4x 10G SFP+ 2x 1G Combo 16GB DRAM DC Controller

SKU: NSN-4250
Condition: New
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

ProLabs ZX-SFP-CWDM-1550-NC 1GB BASE-CWDM 1550nm SMF LC SFP Transceiver

SKU: NSB-1077
Condition: Seller refurbished
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

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 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

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

NEW Juniper CTP-SFP-1GE-LX 1GB BASE-LX 1310nm SMF SFP Transceiver

SKU: NSN-0776
Condition: New
Shipping: Overnight Options
Warranty: 365 days