United States$5,000,000+
Inventory Delivered By
T
Trevor Simmons
4
Splitter cable works well for breaking out 40G ports.
QSFP-4SFP10G-CU2M=
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QSFP TO 4XSFP10G PASSIVE COPPER SPLITTER CABLE 2M
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Name:
QSFP-4SFP10G-CU2M=
- Description:
- QSFP TO 4XSFP10G PASSIVE COPPER SPLITTER CABLE 2M
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 821455037270
- Condition:
- Warranty:
- 3
- List Price:
$170.00
- Price:
$103.0039.4% off
Quantity:
1
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QSFP-4SFP10G-CU2M= Overview
QSFP-4SFP10G-CU2M= is a high-performance direct attach cable assembly that features a QSFP form factor with breakout functionality, converting a single QSFP+ port into four independent SFP+ interfaces, each supporting 10G data rates. Designed for short-range connections, this product is optimized for data center and enterprise network environments where low latency and high throughput are required.
QSFP-4SFP10G-CU2M= offers a compact form factor with physical dimensions that facilitate easy integration into high-density network deployments. It supports Ethernet protocol communications over a 2-meter transmission distance, making it an ideal solution for intra-rack and adjacent rack interconnects in telecom and other high-speed network applications.
QSFP-4SFP10G-CU2M= price is $103.00, a 39.4% saving from the Cisco list price of $170.00. QSFP-4SFP10G-CU2M= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QSFP-4SFP10G-CU2M= for additional pricing. Browse the full 40G Base Modules series or explore all Cisco products.
QSFP-4SFP10G-CU2M= Specifications
- Product Type
- Direct Attach Cable
- Form Factor
- QSFP to SFP+
- Data Rate
- 10G
- Connector Type
- N/A
- Wavelength
- N/A
- Transmission Distance
- Short-Range
- Fiber Type
- N/A
- Max Distance
- 2m
- 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-4SFP10G-CU2M=
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
QSFP-4SFP10G-CU2M= Use Case
Data Center Top-of-Rack 40G Breakout for High-Density Server Connectivity
In a hyperscale data center deploying a 40G QSFP+ spine switch, the QSFP-4SFP10G-CU2M passive copper splitter delivers four native 10G SFP+ links to adjacent ToR server racks without additional transceivers. This solution maximizes port utilization, slashes capex by up to 60% on optics, and ensures deterministic low-latency throughput for latency-sensitive workloads.
Network Test Lab Port Multiplexing for Equipment Validation
In a carrier testing facility, engineers use the QSFP-4SFP10G-CU2M cable to connect a single 40G test chassis to four independent 10G DUT (Device Under Test) ports. By eliminating extra media converters, the passive splitter streamlines test setups, reduces signal-integrity concerns, and accelerates validation cycles by up to 30%, improving lab efficiency and ROI.
Enterprise Campus Edge Aggregation with 40G Uplink and 10G Floor Distribution
An enterprise campus network implements a 40G core switch with edge distribution via QSFP-4SFP10G-CU2M, feeding four 10G access switches across multiple floors. This approach consolidates uplinks, lowers operational overhead, and delivers predictable 10G service-level performance, enabling rapid branch expansions and simplified network maintenance.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QSFP-4SFP10G-CU2M= |  CVR-QSFP-SFP10G= |  QSFP-40G-LR4 |  QSFP-H40G-AOC10M |  QSFP-H40G-CU5M | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | N/A | LC | LC | Integrated Active Optical Cable | N/A |
| Data Rate | 10G | 10G | 40G | 40G | 40G |
| Depth | N/A | 1.5 inches | N/A | N/A | N/A |
| Fiber Type | N/A | Single-mode | Single-mode | N/A | N/A |
| Form Factor | QSFP to SFP+ | QSFP / SFP | QSFP | QSFP+ | QSFP |
| Height | N/A | 0.63 inches | N/A | N/A | N/A |
| Input Voltage | N/A | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 2m | 10 km | 10 km | 10m | 5 meters |
| Network Interface | Ethernet | Fiber | Fiber | Fiber | Ethernet |
| 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 | 2.5W | 4.0 W | N/A | N/A |
| Product Name | QSFP-4SFP10G-CU2M= | CVR-QSFP-SFP10G= | QSFP-40G-LR4 | QSFP-H40G-AOC10M | QSFP-H40G-CU5M |
| Product Type | Direct Attach Cable | Transceiver | Transceiver | Transceiver | 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 | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Short-Range | Long-Range | Long-Range | Short-Range | Short-Range |
| Wavelength | N/A | 1310 nm | 1310 nm | N/A | N/A |
| Weight | N/A | 0.07 lbs | N/A | N/A | N/A |
| Width | N/A | 0.55 inches | N/A | N/A | N/A |
Reviews & Ratings
K
Kevin Patel
5
Reliable connections across all SFP+ links.
B
Brian Wilson
4
Easy way to maximize port usage.
J
Jason Reed
4
Stable performance with no signal issues.
M
Mark Johnson
4
Well-built breakout cable.
Questions & Answers
What is the QSFP-4SFP10G-CU2M passive copper splitter cable?
The QSFP-4SFP10G-CU2M is a 2 m passive copper breakout cable that converts one QSFP+ 40 Gbps port into four independent SFP+ 10 Gbps ports for high-performance network aggregation.
How long is the QSFP-4SFP10G-CU2M cable?
The cable measures exactly 2 meters in length, optimized for short-reach data center and rack-to-rack connections.
Is the QSFP-4SFP10G-CU2M hot-pluggable?
Yes, the cable is fully hot-pluggable, allowing you to install or remove it without powering down your equipment.
What bandwidth does the QSFP-4SFP10G-CU2M support?
It supports an aggregate bandwidth of 40 Gbps (4×10 Gbps), enabling efficient breakout from a single 40 GbE port to four 10 GbE links.
Which vendors and devices are compatible with this passive splitter cable?
The cable is vendor-agnostic and compatible with major OEMs including Cisco, Juniper, Arista, HP, Dell EMC and Huawei QSFP+ ports that support 4×10 Gbps breakout.
Does the QSFP-4SFP10G-CU2M require external power or cooling?
No, as a passive copper solution it requires no external power or active cooling, ensuring energy-efficient operation.
What applications benefit most from the QSFP-4SFP10G-CU2M cable?
Ideal uses include top-of-rack switching, server uplinks, storage area networks and aggregation layer breakout in high-density data centers.
Can I use SFP+ optics or fiber modules with this passive cable?
No, this splitter cable is designed exclusively for direct-attach copper; it does not support SFP+ fiber or optical transceiver modules.
What is the operating temperature range for the QSFP-4SFP10G-CU2M?
The cable operates reliably within an industrial temperature range of –20 °C to +70 °C.
Does the cable support 4×10 GbE breakout on 40 GbE ports?
Yes, it enables native 4×10 GbE breakout functionality on any QSFP+ port that supports split-mode operation.
Is the QSFP-4SFP10G-CU2M RoHS compliant?
Yes, it is fully RoHS-compliant and meets CE and FCC safety and environmental standards.
How do I install the QSFP-4SFP10G-CU2M cable?
Insert the QSFP+ connector into a 40 GbE port, then plug the four SFP+ connectors into compatible 10 GbE slots, ensuring secure latching on all ends.
What is the maximum supported distance for this splitter cable?
The maximum reliable distance is 2 meters; beyond that length, signal integrity and performance cannot be guaranteed.
What are the advantages of using a passive copper splitter versus fiber breakout?
Passive copper offers lower latency, zero additional power consumption and lower cost for short-reach connections up to 2 m.
Does the QSFP-4SFP10G-CU2M support auto-negotiation and link training?
Yes, it supports standard SFP+ auto-negotiation and link training for stable, error-free 10 Gbps connections on each channel.
What warranty is provided with the QSFP-4SFP10G-CU2M cable?
The cable includes a one-year limited warranty covering manufacturing defects and guaranteed performance.