Your search for "SFP-1G" revealed the following:
NEW Cisco C9300L-24UXG-2Q-E 24x 1GB UPoE RJ45 (8x MultiGB) 2x QSFP+ Switch
SKU: NSN-6538
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Dell N3208PX-ON 4x 5GB PoE Copper 4x 1GB RJ45 2x 10GB SFP+ F-B Air Switch
SKU: NSN-9968
Condition: New
Shipping: Overnight Options
Warranty: 365 days
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 Cisco ASR1001X-20G-K9 6x 1GB SFP 2x 10GB SFP+ 1x NIM Slot 1x SPA Slot Router
SKU: NSN-1630
Condition: New
Shipping: Overnight Options
Warranty: 365 days
Cisco C9300L-48UXG-2Q-A 48x 1GB UPoE RJ45 (12x MultiGB) 2x 40GB QSFP+ Switch
SKU: NSB-5291
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days
NEW Arista SFP-10G-T 10GBASE-T Copper RJ45 30m Cat6a SFP+ Transceiver
SKU: NSN-5770
Condition: New
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 Cisco ASR1002-10G-SHA/K9 4x 1GB SFP 3x Open SPA Slot Router w/ ESP10
SKU: NSN-3312
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco WS-C3650-24PDM-E 24x 1GB PoE+ RJ45 2x 10GB SFP+ 2x 1GB SFP Switch
SKU: NSN-5088
Condition: New
Shipping: Overnight Options
Warranty: 365 days
NEW Cisco ASR1002X-5G-SECK9 ASR 1000 Series 6x 1GB SFP 3x Open SPA Router
SKU: NSN-3745
Condition: New
Shipping: Overnight Options
Warranty: 365 days