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Name:
LSWM1QSTK0
- Description:
- 40G QSFP+ Cable 1m
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LSWM1QSTK0 Overview
Overview of “LSWM1QSTK0”
LSWM1QSTK0 is a QSFP transceiver module engineered for high-speed 100G data transmission, featuring LC connector interfaces and optimized for long‐range operation over single-mode fiber. It supports key protocols such as Ethernet and Fibre Channel, making it well suited for demanding use cases in data centers, enterprise networks, and telecom environments.
The module’s compact form factor and precise physical dimensions ensure reliable performance and easy integration into modern network infrastructure. Designed for compatibility with major networking vendors including Cisco, Juniper, Huawei, and Arista, LSWM1QSTK0 delivers both performance and flexibility to meet critical connectivity requirements.
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Explore more options from Transceivers or explore other H3C products.
LSWM1QSTK0 Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 100G |
| Connector Type | LC |
| Wavelength | 1310 nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 10 km |
| Supported Protocols | Ethernet, Fibre Channel |
| Network Interface | Fiber |
| Power Consumption | 8.0 W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista |
| Product Name | LSWM1QSTK0 QSFP Transceiver Module |
| Height | 0.87 inches |
| Width | 1.2 inches |
| Depth | 1.8 inches |
| Weight | 0.2 lbs |
LSWM1QSTK0 Use Case
High-Density Top-of-Rack Switch Connectivity in Enterprise Data Centers
In large-scale enterprise data centers, the LSWM1QSTK0-40G QSFP+ Cable 1m provides direct 40 GbE links between top-of-rack switches and spine aggregation panels. Its 1 m length minimizes signal attenuation and cable clutter, enabling optimal airflow and rack density. Outcome: streamlined cabling management, reduced latency, and improved energy efficiency for mission-critical applications.
Ultra-Low-Latency Trading Network Interconnects for Financial Institutions
Leading financial firms deploy the LSWM1QSTK0-40G QSFP+ Cable 1m to interconnect co-located trading servers and matching engines within exchange data halls. The direct-attach copper design delivers sub-200 ns latency and jitter-free 40 GbE throughput. Benefit: accelerated order execution, enhanced market data processing, and competitive advantage in high-frequency trading.
High-Performance Computing Cluster Node-to-Node Links
Research labs and HPC centers use the LSWM1QSTK0-40G QSFP+ Cable 1m to link GPU and CPU compute nodes across racks for AI training and scientific simulations. Its reliable, high-bandwidth 40 GbE connection supports parallel workloads at scale. Result: maximized inter-node data transfer rates, scalable cluster performance, and reduced time-to-insight on complex computations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco, Juniper, Huawei, Arista | N/A | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 100G | 40G | 10G | 10G | 1G |
| Depth | 1.8 inches | N/A | 1.65 inches | N/A | 0.5 inches |
| Fiber Type | Single-mode | Multi-mode | Single-mode | Multi-mode | Single-mode |
| Form Factor | QSFP | QSFP | SFP | SFP | SFP |
| Height | 0.87 inches | N/A | 0.70 inches | N/A | 0.13 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 10 km | 100 meters | 80 km | 300 meters | 10 km |
| Network Interface | Fiber | Ethernet | 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 | 8.0 W | N/A | 2.8W | N/A | 3.3W |
| Product Name | LSWM1QSTK0 QSFP Transceiver Module | QSFP-40G-BIDI-SR-MM850 | LSPM2150A Optical Transceiver | SFP-XG-SX-MM850-E | LSWM1STK |
| Product Type | Transceiver | 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, Fibre Channel | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet |
| Transmission Distance | Long-Range | Short-Range | Long-Range | Short-Range | Short-Range |
| Wavelength | 1310 nm | 850 nm | 1310 nm | 850 nm | 1310nm |
| Weight | 0.2 lbs | N/A | 0.10 lbs | N/A | 0.05 lbs |
| Width | 1.2 inches | N/A | 0.80 inches | N/A | 0.55 inches |
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Questions & Answers
Q
What is the length of the LSWM1QSTK0 40G QSFP+ cable?
A
The LSWM1QSTK0 is a fixed-length 1 meter (3.28 ft) 40 Gbps QSFP+ passive copper cable designed for reliable short-reach interconnects in data centers and network racks.
Q
What data rate does the 40G QSFP+ cable support?
A
This QSFP+ cable supports a full-duplex aggregate data rate of up to 40 Gbps, delivering four 10 Gbps channels over a single connector for high-speed network links.
Q
Which connector type does the LSWM1QSTK0 cable use?
A
It uses a standardized QSFP+ (Quad Small Form-Factor Pluggable Plus) connector on both ends, ensuring secure, hot-pluggable connectivity to 40G ports.
Q
Is the LSWM1QSTK0 cable compatible with my switch or server?
A
The cable is MSA-compliant and interoperable with all major 40G QSFP+ ports from vendors such as Cisco, Juniper, Arista, Mellanox, and Brocade.
Q
What is the maximum cable span at 40 Gbps?
A
As a passive copper assembly, it reliably supports up to 1 meter reach at full 40 Gbps line rate, ideal for top-of-rack and adjacent-rack connections.
Q
Can I hot-swap the QSFP+ cable while my system is active?
A
Yes, the QSFP+ form factor supports hot-plug insertion and removal, allowing on-the-fly upgrades and maintenance without system downtime.
Q
What is the operating temperature range?
A
The LSWM1QSTK0 operates between 0°C and 70°C (32°F to 158°F), suitable for standard data-center environments.
Q
Is the cable MSA-compliant?
A
Yes, it meets all QSFP+ MSA specifications (including SFF-8436), guaranteeing interoperability and consistent performance across certified devices.
Q
What are the common use cases for this 40G cable?
A
Ideal for server-to-switch, switch-to-switch, and top-of-rack aggregation links in hyperscale, enterprise, and telecom networks requiring low-latency, high-bandwidth connections.
Q
How does this passive copper cable differ from active optical cables?
A
Unlike active optical cables, this passive copper assembly requires no power or optics modules, offering lower latency, consistent performance, and reduced cost for short-reach links.
Q
Can the cable be used for breakout configurations?
A
No, the LSWM1QSTK0 is a direct attach QSFP+ to QSFP+ cable. For breakout (4×10G) connections, use a QSFP+ to 4×SFP+ DAC or AOC.
Q
What is the typical latency of the 40G QSFP+ cable?
A
Latency is negligible (<1 ns) due to its direct copper design, ensuring high-performance transmission for latency-sensitive applications.
Q
What warranty covers the LSWM1QSTK0 cable?
A
It includes a standard lifetime warranty covering manufacturing defects, ensuring long-term reliability and peace of mind.
Q
How do I install the QSFP+ cable correctly?
A
Align the QSFP+ connector latch with the port slot, insert until the latch clicks, and confirm the link LEDs to verify a successful connection.
Q
Does the cable consume power?
A
As a passive copper solution, it draws no additional power from the host system, minimizing energy consumption and cooling requirements.
