- Fiber Optic Transceiver Module
- High Speed Cable
- Fiber Optical Cable
- Fiber Optical Patch Cords
- Splitter CWDM DWDM
- PON Solution
- FTTH Box ODF Closure
- PCI-E Network Card
- Network Cables
- Fiber Optical Adapter
- Fiber Optical Attenuator
- Fiber Media Converter
- PDH Multiplexers
- Protocol Converter
- Digital Video Multiplexer
- Fiber Optical Tools
- Compatible
1.25G 40KM SFP Transceiver
SOPTO is a professional manufacturer in producing fiber optic products. We supply Third-Party Compatible 1.25G 40KM SFP Transceiver with good price and high quality. SOPTO 40KM SFP Transceiver modules are 100% compatible with Cisco, HUWEI, Juniper and other brands that means our products are able to work normally in your equipments.
Tips: SOPTO supplies (Original Equipment Manufacture) OEM Service and Third-Party Compatible Fiber Optic Transceivers.
Compatible Brands
Cisco
Juniper
HP
Intel
DELL
Other mainstream brands
1.25G 40KM SFP Transceiver Order information
Part No. | Parameters | Laser | Temperature | Get Price | |
SOPTO 1.25G 40KM SFP Transceiver Dual LC Port | |||||
SPT-P151G-40(D) | SFP 1.25G 40km Single Mode Fiber (SMF) 1550nm LC | DFB | Standard: 0~70°C; Extended:-20~85°C | ||
SPT-P131G-40(D) | SFP 1.25G 40km Single Mode Fiber (SMF) 1310nm LC | DFB | 0~70°C | ||
SOPTO 1.25G 40KM SFP Transceiver BIDI/WDM Single LC/SC Port | |||||
SOPTO 1.25G 40KM CWDM SFP Transceiver Dual LC Port | |||||
SPT-PC(27-61)1G-40(D) | SFP 1.25G/1000Base 40km Single Mode Fiber (SMF) 1270nm-1610nm LC | DFB | 0~70°C |
1.25G 40KM SFP Transceiver Features
Transmission Distance: 40KM
Data Rate: 1.25G
TX Wavelength: 1310nm, 1490nm, 1550nm
Laser Safety: Class 1 Laser Product (no biological hazard)
Reduction of Hazardous Substances: RoHS-compliant lead-free

1.25G 40KM SFP Transceiver Application
Enterprise Ethernet within 40km Transmisison Distance
CWDM Ethernet within 40km Transmisison Distance
1.25G Data Rate Application Network
Superiority
- low price
- 1-3 Years Warranty
- Standarized Design
- High-quality raw materials
- A Wide range of selection and large stock
- Rigorous and comprehensive product testing
- Widely compatible with all brand equipment

The SFP transceiver is not standardized by any official standards body, but rather is specified by a multi-source agreement (MSA) among competing manufacturers.
As a practical matter, some networking equipment manufacturers engage in vendor lock-in practices whereby they deliberately break compatibility with "generic" SFPs by adding a check in the device's firmware that will enable only the vendor's own modules.
For example, in 2003 during a routine Internet Operating System (IOS) update on their Catalyst line of switches, Cisco added a feature that would cause the switch to reject optical modules that were not deemed ‘Cisco brand.
Sopto is a professional manufacture and supplier of fiber optic transceivers. All our optical transceivers are tested strictly before delivery and fully compatible with major bands’ equipment.
Sopto provides GBIC, SFP, SFP+, X2, XENPAK, XFP and QSFP+ transceivers, supporting different data rate such as 1G, 2G, 4G, 8G, 10G, 40G, etc. These transceivers can be operated with network switches, routers, firewalls, digital return transceivers and other devices of all leading vendors, such as Cisco, HP, Juniper, H3C, 3COM, D-link, etc.
As a third party vendor, Sopto can supply transceiver modules with good quality and low price for our customers.























Fiber Optic Transceiver Customized Example-OEM
What is OEM?
OEM stands for Original Equipment Manufacturer, refers to companies that make products for others to repackage and sell. OEMs are manufactures who resell another company’s products under their own name and branding.
Sopto Provides OEM Service
Sopto can provide OEM service for our customers. All our optical transceivers are produced by our own factory and 100% compatible with Cisco, HP and other brands’ devices. We also provide customize optical transceivers to fit your specific requirements with high quality and low price. If you need OEM service, please give priority to our products. For more information, please contact our sales staff on-line by e-mail or live-chat. Please call us at 0086-755-23018340 or email to sales@sopto.com
Customized Example | ||||
Logo | Model | SN Code | Compatible Brand | Package |
![]() | SPT-XXXX-XX | SPXXXXXXXXX | CISCO | Package with logo |
Sopto provides customized service. Tell us your requirement on logo,model,SN code,compatible brand and package. |