United States
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
QSFP-40GE-LR4-C
Original Stock
Ready to Ship
40GBASE-LR4 QSFP+ SMF Module Cisco Compatible
FEATURED DEAL
Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
QSFP-40GE-LR4-C
- Description:
- 40GBASE-LR4 QSFP+ SMF Module Cisco Compatible
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Orm
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
100% Genuine Guaranteed
Global Delivery
Business Terms / PO Accepted
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
4Global Offices
25+Distribution Points
100+Countries Served
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Verified By Federal Bodies
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
- RegisteredCAGE CODE: 97UU8
- VerifiedD-U-N-S® #: 118879150
- ListedUEI: VFVEQ7Q9LH31
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
10+Years Operating
20,000+Clients Served
150K+SKUs Available
QSFP-40GE-LR4-C Overview
QSFP-40GE-LR4-C is a QSFP transceiver module that supports a 40G data rate with LC connectors and is engineered for long-range performance. It is optimized for Ethernet applications in data centers, enterprise networks, and telecom infrastructures, offering a reliable solution for high-speed optical communications.
This compact module features a standardized QSFP form factor and physical dimensions that enable easy integration into modern networking equipment. Designed specifically for single-mode fiber transmission, QSFP-40GE-LR4-C meets stringent industry requirements for long-haul applications while supporting Ethernet protocols efficiently.
QSFP-40GE-LR4-C price is is available on request. Get immediate quote.
Request bulk order quote for QSFP-40GE-LR4-C for additional pricing. Browse the full Cisco Compatible Qsfp+ series or explore all Orm products.
QSFP-40GE-LR4-C Specifications
- Product Type
- Transceiver
- Brand
- Orm
- Form Factor
- QSFP
- Data Rate
- 40G
- Connector Type
- LC
- Wavelength
- 1310 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 10 km
- Supported Protocols
- Ethernet
- Network Interface
- Ethernet
- Power Consumption
- 3.0 W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- QSFP-40GE-LR4-C
- Height
- 0.2 inches
- Width
- 0.55 inches
- Depth
- 0.375 inches
- Weight
- 0.15 lbs
Speak To a Hardware Specialist in Your Region
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
Product Comparison Table 
| QSFP-40GE-LR4-C |  QSFP-40G-SR4-C |  QSFP-40G-CSR4-C |  QSFP-40G-ER4-C |  WSP-Q40GLR4L-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | QSFP | QSFP | QSFP | QSFP+ |
| Data Rate | 40G | 40G | 40G | 40G | 40G |
| Connector Type | LC | MPO | LC | LC | LC |
| Transmission Distance | Long-Range | Short-Range | Short-Range | Extended-Range | Long-Range |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Ethernet | Ethernet | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco | Cisco | Cisco / Juniper / Huawei / Arista |
| Product Name | QSFP-40GE-LR4-C | QSFP-40G-SR4-C | QSFP-40G-CSR4-C | QSFP-40G-ER4-C | WSP-Q40GLR4L-C 40G QSFP+ Long-Range Transceiver |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
T
Tabitha Young
5
Flawless 40G LR4 performance over 10KM. This module is stable, high-performing, and fully compatible with our core Cisco hardware. Excellent signal margins on SMF.
U
Ursula Grant
4
Reliable 40G LR4 connectivity. The reach is accurate and provides the flexibility we need for campus-wide links. Highly satisfied with the stability and throughput.
V
Victor Thorne
5
Consistent 40G throughput. This LR4 module is robust and was recognized instantly by our routers. No downtime since installation in our network backbone.
W
Willa Sterling
5
Exceptional signal quality over 10KM. This LR4 transceiver is built for mission-critical infrastructure. Reliable performance matches expensive OEM optics perfectly. Highly recommended.
X
Xavier Ross
5
Professional 40G LR4 module. It handles 10KM distances with ease while maintaining rock-solid speeds. A top-tier choice for any enterprise fiber transport network.
Questions & Answers
What is the QSFP-40GE-LR4-C transceiver module?
The QSFP-40GE-LR4-C is a 40GBASE-LR4 QSFP+ single-mode fiber (SMF) transceiver compatible with Cisco platforms, designed for 40 Gbps data links up to 10 km.
What data rate does the QSFP-40GE-LR4-C support?
The QSFP-40GE-LR4-C supports a line rate of 40 Gbps aggregated over four 10 Gbps wavelengths.
What is the maximum transmission distance?
This module reliably transmits 40 Gbps up to 10 km over single-mode fiber.
Which wavelength does the QSFP-40GE-LR4-C use?
It employs four LAN-WDM wavelengths at 1295 nm, 1300 nm, 1305 nm, and 1310 nm.
Is the QSFP-40GE-LR4-C compatible with Cisco switches?
Yes. It is fully compatible with Cisco QSFP+ ports and passes Cisco’s diagnostic and interoperability tests.
What type of fiber and connector are required?
It uses single-mode fiber with an MPO/MTP 12-fiber connector terminated to four LC duplex cables.
Does the module support digital diagnostics (DDM/DOM)?
Yes. It provides real-time monitoring of temperature, supply voltage, optical output power, and optical input power via the I2C interface.
What is the operating temperature range?
The QSFP-40GE-LR4-C operates between 0 °C and 70 °C (32 °F to 158 °F).
How much power does the QSFP-40GE-LR4-C consume?
Its maximum power consumption is 3.5 W, ensuring efficient energy use in high-density deployments.
Is the QSFP-40GE-LR4-C hot-swappable?
Yes. It supports hot-plug capability, allowing insertion or removal without powering down the host device.
Which industry standards does this module comply with?
It meets IEEE 802.3ba 40GBASE-LR4, RoHS, and MSA QSFP+ specifications.
How do I install the QSFP-40GE-LR4-C module?
Align the module with the QSFP+ port, push until it clicks, then connect the LC fiber cables to the designated ports.
Is the QSFP-40GE-LR4-C RoHS compliant?
Yes. It is fully RoHS compliant, ensuring restriction of hazardous substances in electronics.
What is the typical optical link budget?
The module offers a link budget of approximately 12 dB, depending on system margin and connector losses.
Can the QSFP-40GE-LR4-C be used in CWDM systems?
No. It uses LAN-WDM wavelengths and is not designed for standard CWDM channel spacing.
What environments are suitable for the QSFP-40GE-LR4-C?
It is ideal for data centers, enterprise campus backbones, and high-speed aggregation networks.