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

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

Proline EX-SFP-1GE-LX-PRO 1GB BASE-LR SMF SFP Transceiver

SKU: NSB-0616
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco C9200-NM-4G Catalyst 9200 4x 1GB SFP Switch Module

SKU: NSN-5131
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Brocade FESX624HF+2XG-PREM-DC 24x 1GB SFP 4x 1GB Combo 2x XFP (DC) Switch

SKU: NSN-1510
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco A9K-48X10GE-1G-TR 48x 10GB SFP+ (Transport Optimized) Router Line Card

SKU: NSH-8639
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco WS-C2960L-8PS-LL 8x 1GB PoE+ RJ45 2x 1GB SFP Switch

SKU: NSN-5242
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco WS-C2960L-SM-24PS 24x GE PoE+ RJ45 4x 1G SFP Switch

SKU: NSH-4362
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 16539 X440-G2-24FX-GE4 24x Fast Ethernet RJ45 4x 1G SFP Switch

SKU: NSN-4213
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco IE-4000-4S8P4G-E 8x FE PoE+ RJ45 4x 1G Combo 4x FE FC SFP Switch

SKU: NSN-4015
Condition: New
Shipping: Overnight Options
Warranty: 365 days

HPE JD103A 1GB BASE-LH 1550nm SMF LC SFP Transceiver

SKU: NSH-4882
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days