Is the QSFP-40G-CU1M cable active or passive?

It is a passive direct-attach cable requiring no external power or signal conditioning.

What protocol standards does the QSFP-40G-CU1M comply with?

It meets IEEE 802.3ba 40GBASE-CR4 and InfiniBand QDR/FDR requirements.

What is the supported operating temperature range?

Operating temperature ranges from 0 °C to 70 °C for reliable indoor performance.

Can the QSFP-40G-CU1M be hot-plugged?

Yes, it supports full hot-plug capability without interrupting adjacent links.

Is this cable backward compatible with 4×10 Gbps links?

Yes, it supports splitting into four 10 Gbps lanes on compatible QSFP+ ports.

What is the power consumption of the QSFP-40G-CU1M?

As a passive twinax cable, it consumes less than 0.1 W per end.

Can the QSFP-40G-CU1M cable be used outdoors?

No, it is specified for indoor use only and should not be exposed to outdoor environments.

Which switches and servers are compatible?

It works with any vendor QSFP+ port that supports 40 Gbps direct-attach copper links.

How do I install the QSFP-40G-CU1M?

Simply align the QSFP+ connector, insert it into the port until the latch clicks, and repeat on the opposite end.

What warranty does the QSFP-40G-CU1M include?

It comes with a one-year limited warranty covering manufacturing defects.

Does the cable support in-line encryption or diagnostics?

No, as a passive twinax cable it does not support in-line encryption or optical diagnostics.

What is the maximum link distance for QSFP-40G-CU1M?

The maximum reliable link distance is 1 meter in standard data center environments.

What storage conditions are recommended for this cable?

Store in a clean, dry environment at -20 °C to 75 °C with relative humidity below 85%.

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QSFP-40G-CU1M

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Brand: Huawei
SKU: QSFP-40G-CU1M
Price: 45.00 USD
Availability: InStock
Rating: 4.3 (6 reviews)

Description:: QSFP+,40G,High Speed Direct-attach Cables,1m,QSFP+38M,CC8P0.254B(S),QSFP+38M,Used indoor
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QSFP-40G-CU1M Overview

QSFP-40G-CU1M is a QSFP transceiver cable assembly engineered to deliver a 40G data rate for high-performance Ethernet connectivity over short-range distances, making it ideal for demanding data center and enterprise network applications. It features a compact QSFP form factor with integrated direct attach connectors that are specifically designed for plug-and-play installation, ensuring reliable and low-latency communication.

This product is optimized for high-speed data transfers within a transmission distance of one meter and supports Ethernet protocols, providing an effective solution for interconnecting networking equipment in telecom and data-intensive environments. Its robust design, standard physical dimensions, and compatibility with top industry vendors like Cisco, Juniper, Huawei, and Arista make it a versatile choice for modern network infrastructures.

QSFP-40G-CU1M price is $45.00, a 91.7% saving from the Huawei list price of $543.00. QSFP-40G-CU1M is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for QSFP-40G-CU1M for additional pricing. Browse the full Huawei Transceivers series or explore all Huawei products.

QSFP-40G-CU1M Specifications

Product Type: Transceiver
Form Factor: QSFP
Data Rate: 40G
Connector Type: Direct Attach (QSFP)
Wavelength: N/A
Transmission Distance: Short-Range
Fiber Type: N/A
Max Distance: 1 meter
Supported Protocols: 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-CU1M
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-CU1M	SFP+-10G-AOC3M	CFP-40G-ER4	DWDM-SFPGE-1543-73	CWDM-SFPGE-1471
Product Type	Transceiver	Active Optical Cable	Transceiver	Transceiver	Transceiver
Form Factor	QSFP	SFP+	CFP	SFP	SFP
Data Rate	40G	10G	40G	1G	1G
Connector Type	Direct Attach (QSFP)	N/A	LC	LC	LC
Wavelength	N/A	N/A	1310 nm	1550 nm	1471 nm
Transmission Distance	Short-Range	Short-Range	Long-Range	Long-Range	Long-Range
Fiber Type	N/A	Multi-mode	Single-mode	Single-mode	Single-mode
Max Distance	1 meter	3 meters	40 km	80 km	80 km
Supported Protocols	Ethernet	Ethernet	Ethernet	Ethernet	Ethernet
Network Interface	Ethernet	Ethernet	Fiber	Fiber	Fiber
Power Consumption	N/A	N/A	N/A	3.5 W	2.5 W
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	N/A	3.3V	N/A	3.3V	3.3V
Compatibility	Cisco / Juniper / Huawei / Arista	Cisco / Juniper / Huawei / Arista	N/A	Cisco / Juniper / Huawei / Arista	Cisco / Juniper / Huawei / Arista
Product Name	QSFP-40G-CU1M	SFP+-10G-AOC3M	CFP-40G-ER4 Transceiver	DWDM-SFPGE-1543-73	CWDM-SFPGE-1471
Height	N/A	N/A	N/A	0.13 inches	0.55 inches
Width	N/A	N/A	N/A	0.55 inches	0.87 inches
Depth	N/A	N/A	N/A	3.4 inches	1.3 inches
Weight	N/A	N/A	N/A	0.1 lbs	0.14 lbs

Reviews & Ratings

Michael Avery

Reliable short reach DAC for 40G connections.

Daniel Whitfield

Low latency and stable throughput.

Robert Henson

Good build quality for dense racks.

Paul Maddox

Easy installation and removal.

Stephen Carver

Consistent performance observed.

Oliver Stanton

Dependable 40G DAC cable.

Questions & Answers

What is the QSFP-40G-CU1M cable?

The QSFP-40G-CU1M is a 1-meter passive QSFP+ direct-attach copper cable designed for 40 Gbps data center interconnects.

Which data rate does the QSFP-40G-CU1M support?

It supports a full duplex 40 Gbps data rate over a twinax copper link.

What applications is this cable best suited for?

It’s ideal for short-reach top-of-rack switch-to-switch and switch-to-server connections in high-density data centers.

What connector type does the QSFP-40G-CU1M use?

It uses QSFP+ 38-pin male connectors on both ends for direct-attach twinax copper connectivity.

Related Searches Huawei Transceivers

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QSFP-40G-CU1M Overview

QSFP-40G-CU1M price is $45.00, a 91.7% saving from the Huawei list price of $543.00. QSFP-40G-CU1M is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for QSFP-40G-CU1M for additional pricing. Browse the full Huawei Transceivers series or explore all Huawei products.

QSFP-40G-CU1M Specifications

Product Type

Transceiver

Form Factor

QSFP

Data Rate

40G

Connector Type

Direct Attach (QSFP)

Wavelength

N/A

Transmission Distance

Short-Range

Fiber Type

N/A

Max Distance

1 meter

Supported Protocols

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-CU1M

Height

N/A

Width

N/A

Depth

N/A

Weight

N/A

Product Comparison Table

	QSFP-40G-CU1M	SFP+-10G-AOC3M	CFP-40G-ER4	DWDM-SFPGE-1543-73	CWDM-SFPGE-1471
Product Type	Transceiver	Active Optical Cable	Transceiver	Transceiver	Transceiver
Form Factor	QSFP	SFP+	CFP	SFP	SFP
Data Rate	40G	10G	40G	1G	1G
Connector Type	Direct Attach (QSFP)	N/A	LC	LC	LC
Wavelength	N/A	N/A	1310 nm	1550 nm	1471 nm
Transmission Distance	Short-Range	Short-Range	Long-Range	Long-Range	Long-Range
Fiber Type	N/A	Multi-mode	Single-mode	Single-mode	Single-mode
Max Distance	1 meter	3 meters	40 km	80 km	80 km
Supported Protocols	Ethernet	Ethernet	Ethernet	Ethernet	Ethernet
Network Interface	Ethernet	Ethernet	Fiber	Fiber	Fiber
Power Consumption	N/A	N/A	N/A	3.5 W	2.5 W
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	N/A	3.3V	N/A	3.3V	3.3V
Compatibility	Cisco / Juniper / Huawei / Arista	Cisco / Juniper / Huawei / Arista	N/A	Cisco / Juniper / Huawei / Arista	Cisco / Juniper / Huawei / Arista
Product Name	QSFP-40G-CU1M	SFP+-10G-AOC3M	CFP-40G-ER4 Transceiver	DWDM-SFPGE-1543-73	CWDM-SFPGE-1471
Height	N/A	N/A	N/A	0.13 inches	0.55 inches
Width	N/A	N/A	N/A	0.55 inches	0.87 inches
Depth	N/A	N/A	N/A	3.4 inches	1.3 inches
Weight	N/A	N/A	N/A	0.1 lbs	0.14 lbs

Questions & Answers

What is the QSFP-40G-CU1M cable?

The QSFP-40G-CU1M is a 1-meter passive QSFP+ direct-attach copper cable designed for 40 Gbps data center interconnects.

Which data rate does the QSFP-40G-CU1M support?

It supports a full duplex 40 Gbps data rate over a twinax copper link.

What applications is this cable best suited for?

It’s ideal for short-reach top-of-rack switch-to-switch and switch-to-server connections in high-density data centers.

What connector type does the QSFP-40G-CU1M use?

It uses QSFP+ 38-pin male connectors on both ends for direct-attach twinax copper connectivity.