**WTD RTXM191-404 1.25G SFP Transceiver - Single Mode 10km 1310nm****Manufacturer:** WTD (Wuhan Telecommunication Devices) - Premier OEM manufacturer
**Part Number:** RTXM191-404
**Also Known As:** Lightron SFP24-IS3LC-IAY, Accelink Version**Technical Specifications:**
• Data Rate: 1.25 Gbps (Supports 1000BASE-LX Ethernet)
• Fiber Type: Single-Mode (9/125μm SMF)
• Wavelength: 1310nm FP Laser
• Distance: Up to 10km (15km on high-quality fiber)
• Connector: LC Duplex
• Protocols: IEEE 802.3z Gigabit Ethernet, Fibre Channel, SFP MSA Compliant
• Features: Digital Diagnostic Monitoring (DDM/DOM) enabled, Hot-pluggable
• Operating Temp: -40°C to +85°C (Industrial Grade)**Physical Condition:**
✓ Brand new in original anti-static packaging
✓ Never installed/deployed
✓ Full OEM specifications intact**Applications:**
• 1 Gigabit Ethernet switches and routers
• Cellular backhaul (DU/CDU connections)
• FTTx deployments
• Enterprise fiber networks
• Compatible with major brands (Cisco GLC-LH-SMD equivalent, HP, Dell, Juniper, Calix, Tellabs)**Why Buy?**
This is a genuine OEM transceiver from one of China's largest optical component manufacturers (ships to Ericsson, Huawei, Nokia). Features industrial temperature rating for harsh environments. Perfect for telecom infrastructure or enterprise fiber upgrades.