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QSFP-40G-LR4-WDM1300 - H3C 40GBASE-LR4 QSFP+ 1310nm 10km
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High-performance H3C QSFP-40G-LR4-WDM1300 40GBASE-LR4 QSFP+ optical transceiver for long-reach 10km single-mode fiber connections, ideal for data center and enterprise networks.
Key Features
40Gbps High Speed
Delivers 40 Gbps data rate over single-mode fiber, meeting IEEE 802.3ba standards for high-bandwidth applications.
10km Reach
Supports transmission distances up to 10 km over OS2 single-mode fiber, perfect for campus and metro networks.
WDM Technology
Utilizes four CWDM lanes (1271, 1291, 1311, 1331 nm) for efficient wavelength division multiplexing.
Digital Diagnostics
Built-in DDM (Digital Diagnostic Monitoring) for real-time monitoring of temperature, voltage, and optical power.
Specifications
| Model | QSFP-40G-LR4-WDM1300 |
| Brand | H3C |
| Form Factor | QSFP+ |
| Data Rate | 40 Gbps |
| Wavelength | 1310nm (4 CWDM lanes: 1271, 1291, 1311, 1331 nm) |
| Max Distance | 10 km (6.21 miles) |
| Connector | Dual LC/UPC |
| Cable Type | OS2 Single-Mode Fiber (9/125 µm) |
| Transmitter Type | DFB |
| Receiver Type | PIN |
| TX Power | -7 to +2.3 dBm |
| Receiver Sensitivity | < -13.7 dBm |
| Power Consumption | < 2.5W |
| Modulation Format | NRZ |
| DDM Support | Yes |
| Bit Error Ratio (BER) | 1E-12 |
| Protocols | IEEE 802.3ba, QSFP+ MSA, SFF-8436, SFF-8636, Infiniband 40G QDR |
| Warranty | 5 Years |
Key Benefits
- High Performance – 40Gbps throughput with low power consumption (<2.5W) ensures efficient network operation.
- Long Reach – 10km distance over single-mode fiber enables flexible deployment in campus and metro networks.
- Reliable Connectivity – Robust design with DDM support for proactive network monitoring and maintenance.
Frequently Asked Questions About Product
If these questions do not dispel your doubts, please contact us
Where do your products come from?
All of our products from Cisco Disti,Cisco partner, Cisco distribution directly.
How to ship the goods?
Datadirect cooperation with FEDEX,UPS & DHL and air shipment. Orders can be tracked by express Tracking number. Air shipment will supply the B/L.
Can l use my own freight account to ship my order?
Sure, we can use your accounts to ship goods without any issue.
What's your warranty for the products you sell?
Please refer below our warranty terms.
https://www.datadirectglobal.com/pages/product-warranty-policy
Datadirect offers for all items on the website.
Cisco/Juniper:
1 year warranty for new licensed products; 3 months warranty for used, REF, etc.
Aruba:
Generally provide Limited Lifetime Warranty
PS: Limited Lifetime Warranty means the machine is damaged during normal use, datadirect can provide free warranty service. However, we cannot provide warranty for damage caused by human or violent factors.
If you need to apply for a product warranty, you need to send the defective product back to us (suzhou China). The shipping cost of the defective product and the shipping cost of the spare parts will be borne by datadirect.
The shipping cost for the return is: first receipt address to our warehouse. The shipping cost of the spare parts is from our warehouse to the first delivery address.
I want to buy a licence/service for a device, can I use it properly locally?
Fortinet, Meraki branded equipment licences purchased from us can be used globally, Cisco service needs to be confirmed by contacting us
How Hardware Procurement Works
A straightforward four-step process. No hidden costs, no ambiguous timelines. From your first inquiry to delivery, you know exactly what happens next.
Submit Your Requirement
Send us your hardware spec, model numbers, and quantity via email or WhatsApp. The more detail, the faster we can quote.
Receive a Detailed Quote
We respond within 24 hours with a complete quote - itemized pricing, lead time, and logistics estimate. No vague estimates.
Confirm and Pay
Approve the quote, complete payment or confirm agreed credit terms. We then place the order with our verified supply network.
Delivery and Handover
We manage logistics end-to-end and provide tracking. Delivery comes with full documentation and post-delivery support.
Order Fulfillment Process
From Warehouse to Delivery: Ensuring Accuracy and Speed. Our order fulfillment process guarantees that your order is handled with the utmost care and efficiency.

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