Your search for "sfp-1g" revealed the following:
Cisco DWDM-SFP-4214 1GB BASE-DWDM 1542.14nm SMF LC SFP Transceiver
SKU: NSB-6019
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper MIC-3D-20GE-SFP-E MX Series 20x 1GB SFP (E) Router Module
SKU: NSN-0285
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell N3048EP-ON 48x 1GB PoE+ RJ45 2x 10GB SFP+ 2x 1GB Combo Switch
SKU: NSN-2207
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell N1124P-ON N1100 Series 24x 1GB PoE+ RJ45 4x 10GB SFP+ EMC Switch
SKU: NSN-4875
Condition: New
Shipping: Overnight Options
Warranty: 365 days
10GTek SFP-T 1GB BASE-T Copper RJ45 100m SFP Transceiver
SKU: NSB-3001
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Juniper EX-SFP-GE80KCW1510 1GB BASE-CWDM SMF LC SFP Transceiver
SKU: NSH-6961
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Allied Telesis AT-x230-10GP x230 Series 8x 1GB PoE+ RJ45 2x 1GB SFP Switch
SKU: NSB-2602
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Juniper DPCE-X-40GE-SFP 40x 1GB SFP Enhanced Services DPC Module
SKU: NSN-4413
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Juniper PB-8GE-TYPE2-SFP-IQ2 M320 Series 8x 1GB SFP Router Module
SKU: NSB-2709
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
Allied Telesis AT-x610-24SPs/X 20x 1GB SFP 4x 1GB Combo 2x 10GB SFP+ Switch
SKU: NSB-2326
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days