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

Juniper QFX-SFP-1GE-LX 1GB BASE-LX 1310nm SMF LC SFP Transceiver

SKU: NSB-3311
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco NIM-2GE-CU-SFP ISR 4000 2x 1GB Combo (SFP/RJ45) Router Module

SKU: NSN-4219
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco DWDM-SFP-3033 1GB BASE-DWDM 1530.33 nm SMF LC SFP Transceiver

SKU: NSB-5991
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Ruckus ICX7150-C08P-2X1G Brocade ICX 7150 8x 1GB PoE+ RJ45 2x 1GB SFP Switch

SKU: NSB-1041
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

Cisco C9300L-48UXG-4X-A 48x 1GB UPoE RJ45 (12x MultiGB) 4x 10GB SFP+ Switch

SKU: NSB-5289
Condition: Seller refurbished
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco C6800-48P-SFP-XL Catalyst 6800 48x 1GB FC SFP Switch Module w/ DFC4XL

SKU: NSN-3593
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Cisco WS-C2960L-SM-8TS Catalyst 2960L 8x GE RJ45 2x 1G SFP Switch

SKU: NSN-6048
Condition: New
Shipping: Overnight Options
Warranty: 365 days

NEW Extreme 16537 X440-G2-48t-10GE4-DC 48x 1GB RJ45 4x SFP+ 4x 1GB Combo Switch

SKU: NSN-4211
Condition: New
Shipping: Overnight Options
Warranty: 365 days

Cisco WS-C3650-24PDM-L 24x 1GB PoE+ RJ45 2x 10GB SFP+ 2x 1GB SFP LB Switch

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

NEW Cisco C9300L-48PF-4G-A 48x 1GB Full PoE+ RJ45 4x 1GB SFP Switch

SKU: NSN-7625
Condition: New
Shipping: Overnight Options
Warranty: 365 days