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Reliable short reach DAC for 40G connections.
QSFP-40G-CU1M
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QSFP+,40G,High Speed Direct-attach Cables,1m,QSFP+38M,CC8P0....
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Name:
QSFP-40G-CU1M
- Description:
- QSFP+,40G,High Speed Direct-attach Cables,1m,QSFP+38M,CC8P0.254B(S),QSFP+38M,Used indoor
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Huawei
- GTIN:
- 6920702795667
- Condition:
- Warranty:
- 3
- List Price:
$543.00
- Price:
$45.0091.7% off
Quantity:
1
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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
- Power Consumption
- N/A
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Product Type
- Transceiver
- Transmission Distance
- Short-Range
- Supported Protocols
- Ethernet
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Network Interface
- Ethernet
- Form Factor
- QSFP
- Data Rate
- 40G
- Wavelength
- N/A
- Fiber Type
- N/A
- Input Voltage
- N/A
- Max Distance
- 1 meter
- Connector Type
- Direct Attach (QSFP)
- Product Name
- QSFP-40G-CU1M
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
D
Daniel Whitfield
5
Low latency and stable throughput.
R
Robert Henson
5
Good build quality for dense racks.
P
Paul Maddox
5
Easy installation and removal.
S
Stephen Carver
4
Consistent performance observed.
O
Oliver Stanton
5
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.
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%.