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Reliable 5m DAC with stable 40G performance.
QSFP-40G-CU5M
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QSFP+,40G,High Speed Direct-attach Cables,5m,QSFP+38M,CC8P0....
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QSFP-40G-CU5M
- Description:
- QSFP+,40G,High Speed Direct-attach Cables,5m,QSFP+38M,CC8P0.40B(S),QSFP+38M,Used indoor
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Huawei
- GTIN:
- 6920702724629
- Condition:
- Warranty:
- 3
- List Price:
$829.00
- Price:
$105.0087.3% off
Quantity:
1
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QSFP-40G-CU5M Overview
QSFP-40G-CU5M is a QSFP direct attach copper cable engineered to deliver a 40G data rate for short-range connectivity in data centers, enterprise networks, and high-performance computing environments. This module features a QSFP form factor with integrated QSFP connectors designed specifically for 40G Ethernet, ensuring reliable performance over distances up to 5 meters.
QSFP-40G-CU5M is optimized for scenarios where high bandwidth and low latency are critical, offering a compact, low-power solution with minimal footprint. Its design complies with industry standards for Ethernet transmission, making it an ideal choice for modern, densely populated network infrastructures and telecom applications.
QSFP-40G-CU5M price is $105.00, a 87.3% saving from the Huawei list price of $829.00. QSFP-40G-CU5M is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-40G-CU5M for additional pricing. Browse the full Huawei Transceivers series or explore all Huawei products.
QSFP-40G-CU5M Specifications
- Product Type
- Direct Attach Copper Cable
- Form Factor
- QSFP
- Data Rate
- 40G
- Connector Type
- QSFP
- Wavelength
- N/A
- Transmission Distance
- Short-Range
- Fiber Type
- N/A
- Max Distance
- 5m
- Supported Protocols
- 40G Ethernet
- Network Interface
- Ethernet
- Power Consumption
- N/A
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- N/A
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- QSFP-40G-CU5M
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QSFP-40G-CU5M |  DWDM-SFPGE-1542-14 |  OSMD10N02 |  Huawei QSFP-4SFP10G-CU1M |  SFP-FC4G-SW | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Huawei | Cisco, Juniper, Huawei, Arista |
| Connector Type | QSFP | LC | LC | QSFP and SFP+ | LC |
| Data Rate | 40G | 1G | 10G | 10G | 4G |
| Depth | N/A | N/A | 1.0 inches | N/A | 1.05 inches |
| Fiber Type | N/A | Single-mode | Multi-mode | N/A | Multi-mode |
| Form Factor | QSFP | SFP | SFP+ | QSFP | SFP |
| Height | N/A | N/A | 0.55 inches | N/A | 0.30 inches |
| Input Voltage | N/A | 3.3V | 3.3V | N/A | 3.3V |
| Max Distance | 5m | 80 km | 300 meters | 1m | 300 meters |
| Network Interface | Ethernet | Fiber | Ethernet | Copper | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | 1.2W | 2.5W | N/A | N/A |
| Product Name | QSFP-40G-CU5M | DWDM-SFPGE-1542-14 | OSMD10N02 10G SFP+ Transceiver | Huawei QSFP-4SFP10G-CU1M | SFP-FC4G-SW |
| Product Type | Direct Attach Copper Cable | Transceiver | Transceiver | Direct Attach Copper Cable Assembly | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | 40G Ethernet | Ethernet | Ethernet | Ethernet | Fibre Channel |
| Transmission Distance | Short-Range | Long-Range | Short-Range | Short-Range | Short-Range |
| Wavelength | N/A | 1542 nm | 850 nm | N/A | 850 nm |
| Weight | N/A | N/A | 0.1 lbs | N/A | 0.1 lbs |
| Width | N/A | N/A | 0.83 inches | N/A | 0.65 inches |
Reviews & Ratings
C
Calvin Rhodes
5
Low latency and strong build quality.
L
Lance Barrett
4
Ideal for short rack connections.
P
Preston Hayes
5
Consistent bandwidth in data centers.
M
Miles Donovan
5
Easy installation and secure fit.
J
Jared Foster
4
Dependable 40G copper cable.
Questions & Answers
What is the QSFP-40G-CU5M direct-attach cable?
The QSFP-40G-CU5M is a 5 meter, QSFP+ to QSFP+ high-speed copper cable assembly designed for 40 Gbps data transmission in indoor networking environments.
What data rate does the QSFP-40G-CU5M support?
This cable supports up to 40 Gbps aggregate bandwidth, enabling low-latency, high-performance interconnects in data center switches and servers.
What is the maximum reach of the QSFP-40G-CU5M?
The QSFP-40G-CU5M provides reliable 40 Gbps connectivity over a fixed length of 5 meters.
Is the QSFP-40G-CU5M cable passive or active?
The QSFP-40G-CU5M is a passive copper direct-attach cable, requiring no external power or signal conditioning for runs up to 5 meters.
Which port type is compatible with the QSFP-40G-CU5M?
It is compatible with any QSFP+ port conforming to the MSA (Multi-Source Agreement) on switches, routers, and servers.
Which vendors support the QSFP-40G-CU5M cable?
This cable is vendor-agnostic and interoperates with major QSFP+ ports from Cisco, Juniper, Arista, Mellanox, Brocade and other MSA-compliant devices.
Is the QSFP-40G-CU5M hot-pluggable?
Yes, the QSFP-40G-CU5M supports hot-plug insertion and removal without requiring system shutdown or reconfiguration.
Can the QSFP-40G-CU5M be used outdoors?
No, this cable is rated for indoor environments only and should be installed in climate-controlled data center or server room racks.
What operating temperature range does the QSFP-40G-CU5M support?
It operates reliably in ambient temperatures from 0 °C to 70 °C (32 °F to 158 °F), meeting standard data center requirements.
How much power does the QSFP-40G-CU5M consume?
As a passive cable assembly, the QSFP-40G-CU5M draws negligible power, typically under 0.1 W per end.
Does the QSFP-40G-CU5M feature EMI shielding?
Yes, the cable has integrated shielding in its copper pairs and connector housings to minimize electromagnetic interference.
How do I install the QSFP-40G-CU5M cable?
Align each QSFP+ connector with the device port, press until the latch clicks, and verify link status via your switch or host interface.
What are the performance benefits of using QSFP-40G-CU5M?
It delivers ultra-low latency, high throughput, and cost-effective 40 Gbps links without the complexity or power overhead of optical transceivers.
What warranty and support come with the QSFP-40G-CU5M?
The cable includes a one-year limited warranty and lifetime technical support for compatibility and installation guidance.
How does QSFP-40G-CU5M compare to fiber transceivers?
Compared to optical modules and fiber, the passive QSFP-40G-CU5M offers lower cost, reduced power consumption, and simpler installation for short-reach links up to 5 meters.