40G QSFP+
Cisco
40G QSFP+
LQ-M8540-SR4C
QSFP-40G-SR4 Compatible LINK-PP LQ-M8540-SR4C 40G QSFP+ 850nm ≤150m MTP/MPO-12 SR4 DOM SMF, Cisco
Brocade
40G QSFP+
LQ-M8540-SR4C
40G-QSFP-SR4 Compatible LINK-PP LQ-M8540-SR4C 40G QSFP+ 850nm ≤150m MTP/MPO-12 SR4 DOM SMF, Brocade
Extreme
40G QSFP+
LQ-M8540-SR4C
40GB-SR4-QSFP Compatible LINK-PP LQ-M8540-SR4C 40G QSFP+ 850nm ≤150m MTP/MPO-12 SR4 DOM SMF, Extreme
Cisco
40G QSFP+
LQ-CW40-FR4C
WSP-Q40GLR4L Compatible LINK-PP LQ-CW40-FR4C 40G QSFP+ 1310nm 2km Duplex LC FR4 DOM SMF, Cisco
Brocade
40G QSFP+
LQ-CW40-FR4C
40G-QSFP-LR4L Compatible LINK-PP LQ-CW40-FR4C 40G QSFP+ 1310nm 2km Duplex LC FR4 DOM SMF, Brocade
H3C
40G QSFP+
LQ-CW40-FR4C
QSFP-40G-LR4L-WDM1300 Compatible LINK-PP LQ-CW40-FR4C 40G QSFP+ 1310nm 2km Duplex LC FR4 DOM SMF, H3C
Generic
40G QSFP+
LQ-CW40-FR4C
QSFP-IR4-40G Compatible LINK-PP LQ-CW40-FR4C 40G QSFP+ 1310nm 2km Duplex LC FR4 DOM SMF, Generic
Cisco
40G QSFP+
LQ-CW40-L24C
QSFP-ELR4-40G Compatible LINK-PP LQ-CW40-L24C 40G QSFP+ 1310nm 20km Duplex LC LR DOM SMF, Cisco
40G QSFP+ Modules – High-Bandwidth Fiber Transceivers for Cloud & Telecom Networks
LINK-PP's 40G QSFP+ optical transceivers are engineered to deliver high-performance, reliable, and cost-effective connectivity solutions for modern data centers and enterprise networks. Designed in full compliance with the QSFP MSA standard, our transceivers offer seamless interoperability with mainstream switch and router brands, including Cisco, Juniper, Arista, HPE, and more.
These 40G modules are available in a variety of form factors and specifications such as SR4 (short range over multimode fiber with MTP/MPO interface), LR4 (long range up to 10km over single-mode fiber), and CSR4 for extended multimode deployments. Whether you're upgrading aggregation layers or deploying Top-of-Rack (ToR) switches, our modules ensure low-latency, low-power consumption, and optimized thermal performance.
One of the key features of LINK-PP 40G QSFP+ modules is their support for breakout applications—enabling 40G to 4x10G connectivity using MTP-LC breakout cables. This flexibility allows network engineers to build scalable and cost-efficient infrastructures tailored to hybrid environments.
All LINK-PP transceivers undergo rigorous testing for compatibility, signal integrity, and interoperability with leading network equipment. Modules come with built-in DDM (Digital Diagnostic Monitoring), hot-swappable design, RoHS compliance, and advanced fault protection to ensure long-term performance.
With global availability and prompt OEM/ODM customization, LINK-PP remains a trusted supplier for high-speed optical networking across cloud computing, hyperscale data centers, telecom, and campus networks.
Need help choosing the right module? Explore our expert guide to 40G QSFP+ transceivers or contact us for a compatibility list.
📘Frequently Asked Questions about 40G QSFP+
- Q: Are LINK-PP QSFP+ transceivers compatible with Cisco switches?
A: Yes, all 40G QSFP+ modules from LINK-PP are 100% Cisco compatible and tested for seamless integration. - Q: Can I use a QSFP+ SR4 module with breakout to 4x10G ports?
A: Absolutely. Using an MTP to 4x LC breakout cable, you can split a 40G SR4 signal into four independent 10G links. - Q: What's the maximum distance of a QSFP+ LR4 module?
A: QSFP+ LR4 modules support transmission up to 10km over single-mode fiber. - Q: Do your modules support DDM?
A: Yes, all LINK-PP modules support Digital Diagnostic Monitoring (DDM) for real-time monitoring.
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