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3-meter active optical cable delivers dependable 40G speeds.
QSFP-H40G-AOC3M
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40GBASE Active Optical Cable, 3m
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QSFP-H40G-AOC3M
- Description:
- 40GBASE Active Optical Cable, 3m
- Rating:
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In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 814933029621
- Condition:
- Warranty:
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- List Price:
$1,003.00
- Price:
$257.0074.4% off
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QSFP-H40G-AOC3M Overview
QSFP-H40G-AOC3M is a QSFP transceiver module engineered to deliver a 40G data rate using an integrated active optical cable, making it ideal for short-range connectivity in high-density environments such as data centers, enterprise networks, and telecom setups. Its compact QSFP form factor, fixed 3-meter cable length, and support for Ethernet protocols ensure reliable, high-speed interconnects where space efficiency and performance are paramount.
This module is designed with a focus on robust performance and streamlined deployment, offering standards-compliant physical dimensions for seamless integration into existing infrastructures. With its optimized design for short-range transmission and industry-standard features, the QSFP-H40G-AOC3M stands out as a cost-effective and efficient solution for modern high-speed network applications.
QSFP-H40G-AOC3M price is $257.00, a 74.4% saving from the Cisco list price of $1,003.00. QSFP-H40G-AOC3M is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-H40G-AOC3M for additional pricing. Browse the full 40G Base Modules series or explore all Cisco products.
QSFP-H40G-AOC3M Specifications
- Power Consumption
- N/A
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Connector Type
- N/A
- Product Type
- Transceiver
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Supported Protocols
- Ethernet
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- N/A
- Network Interface
- Ethernet
- Form Factor
- QSFP
- Data Rate
- 40G
- Max Distance
- 3 m
- Product Name
- QSFP-H40G-AOC3M
QSFP-H40G-AOC3M Use Case
High-Density Data Center Spine-Leaf Connectivity
In modern hyperscale data centers, network architects deploy the QSFP-H40G-AOC3M-40GBASE Active Optical Cable, 3m to link spine and leaf switches at 40 Gbps. This AOC eliminates bulky copper cables, reduces port-to-port latency under 1 µs, and ensures stable, high-bandwidth transport for virtualization, VDI and cloud workloads. Benefit: maximized rack density, simplified cable management, and consistent low-latency performance for mission-critical traffic.
Ultra-Low-Latency Financial Trading Infrastructure
Leading trading firms use the QSFP-H40G-AOC3M-40GBASE Active Optical Cable, 3m to interconnect switches in algorithmic trading clusters, achieving sub-1 µs latency and full-duplex 40 Gbps bandwidth. Short-reach AOC technology removes signal degradation risks and supports hot-swappable plug-and-play deployment on the trading floor. Benefit: accelerated trade execution, superior price discovery and minimized network jitter for high-frequency strategies.
High-Performance Computing Cluster Interconnects
Research institutions deploy the QSFP-H40G-AOC3M-40GBASE Active Optical Cable, 3m to link compute nodes in HPC clusters, enabling 40 Gbps data exchange for AI training, scientific modeling and simulation. The AOC’s robust fiber optics deliver electromagnetic immunity and predictable signal integrity in dense rack environments. Benefit: reduced job runtimes, streamlined parallel-processing throughput and enhanced cluster scalability.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QSFP-H40G-AOC3M |  QSFP-H40G-CU5M= |  QSFP-4SFP10G-CU4M= |  QSFP-40G-SR4-S= |  QSFP-4SFP10G-CU1M | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Direct Attach Copper Cable (DAC) | Transceiver | Direct Attach Copper Cable |
| Form Factor | QSFP | QSFP | QSFP+ to 4x SFP+ | QSFP | QSFP-to-SFP+ Breakout Cable |
| Data Rate | 40G | 40G | 10G | 40G | 10G |
| Connector Type | N/A | QSFP | QSFP+ and SFP+ | MPO | QSFP+ / SFP+ |
| Wavelength | 850 nm | N/A | N/A | 850 nm | N/A |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | N/A | N/A | Multi-mode | N/A |
| Max Distance | 3 m | 5m | 4 meters | 70-100 meters | 1 meter |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Ethernet | Copper | Fiber | Copper |
| Power Consumption | N/A | N/A | N/A | 4.0W | N/A |
| 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 |
| Input Voltage | 3.3V | N/A | N/A | 3.3V | N/A |
| Compatibility | N/A | N/A | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | QSFP-H40G-AOC3M | QSFP-H40G-CU5M= | QSFP-4SFP10G-CU4M= | QSFP-40G-SR4-S= | QSFP-4SFP10G-CU1M |
| Height | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
Reviews & Ratings
K
Kevin Brooks
5
Flexible and easy to route in racks.
B
Brian Edwards
5
Plug-and-play solution for high-speed connections.
J
Jason Coleman
4
Reliable performance with low latency.
M
Mark Simmons
5
Good value for medium-length optical links.
Questions & Answers
What is the QSFP-H40G-AOC3M 40GBASE Active Optical Cable, 3m?
The QSFP-H40G-AOC3M is a 3-meter active optical cable featuring QSFP+ to QSFP+ interfaces, delivering 40Gbps over multimode fiber for data center interconnects.
What data rate and reach does this cable support?
It supports 40Gbps data rates up to 3 meters with ultra-low latency and high-bandwidth performance.
Which connector type does the QSFP-H40G-AOC3M use?
It uses QSFP+ MSA-compliant 4-lane connectors on both ends for seamless integration with QSFP+ ports.
Is the QSFP-H40G-AOC3M hot-pluggable?
Yes, it features fully hot-pluggable QSFP+ interfaces for live insertion and removal without powering down equipment.
Which devices and brands is the QSFP-H40G-AOC3M compatible with?
It is compatible with any QSFP+-enabled switch, router, or server from leading vendors supporting MSA-compliant modules.
Does the QSFP-H40G-AOC3M support Digital Diagnostics Monitoring (DDM)?
Yes, it supports SFF-8436-compliant DDM for real-time monitoring of optical power, temperature, and voltage.
What is the typical power consumption of the QSFP-H40G-AOC3M?
Its typical power consumption is ≤0.8W per cable assembly, ensuring energy-efficient operation.
What are the operating and storage temperature ranges?
Operating: 0°C to 70°C; Storage: –40°C to 85°C, ensuring reliability under varied conditions.
What is an Active Optical Cable (AOC) and how does it differ from a DAC?
An AOC integrates optical transceivers and fibers for active signal conversion, offering longer reach, lighter weight, and better signal integrity than passive copper DACs.
Is the QSFP-H40G-AOC3M compliant with industry standards?
Yes, it complies with IEEE 802.3ba 40GBASE, SFF-8436, and RoHS directives for environmental safety.
How do I install the QSFP-H40G-AOC3M?
Align and insert the QSFP+ ends into the corresponding QSFP+ ports until the latch clicks; no special tools are required.
Can the QSFP-H40G-AOC3M be used with breakout cables?
No, this single-pair cable is designed for QSFP+ to QSFP+ links; for breakout applications, use a QSFP+ to multiple SFP+ breakout cable.
Does the QSFP-H40G-AOC3M require external power?
No, it draws power directly from the host QSFP+ ports, eliminating the need for separate power supplies.
What warranty and support options are available?
It comes with a standard 3-year warranty and lifetime technical support for peace of mind.
Are there any safety or handling precautions?
Handle by the connector housing, avoid bending the cable below its 30mm minimum bend radius, and follow ESD precautions.
What are the key benefits of choosing the QSFP-H40G-AOC3M?
It delivers high-speed 40Gbps performance, low latency, extended reach up to 3m, energy efficiency, and seamless compatibility with QSFP+ systems.