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16Gb long wave SFP delivered reliable 10km links.
QK725A
HP B-series 16Gb SFP+LW 10km XCVR
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Name:
QK725A
- Description:
- HP B-series 16Gb SFP+LW 10km XCVR
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$3,400.00
- Price:
$1,921.0043.5% off
Quantity:
1
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QK725A Overview
QK725A is a high-performance SFP+ transceiver engineered for 10G data rates, featuring an LC connector and optimized for short-range transmission. Designed with a compact form factor and precise physical dimensions, it supports Ethernet and Fibre Channel protocols, making it ideal for integration into dense data centers and enterprise networks.
The QK725A module is perfect for modern telecom and network applications, offering reliable connectivity and consistent performance. Its robust design, verified compatibility with major networking vendors such as Cisco, Juniper, Huawei, and Arista, and efficient power consumption make it a valuable component in high-speed infrastructure systems.
QK725A price is $1,921.00, a 43.5% saving from the Hpe list price of $3,400.00. QK725A is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for QK725A for additional pricing. Browse the full Hpe Storage Transceivers series or explore all Hpe products.
QK725A Specifications
- Product Type
- Transceiver
- Form Factor
- SFP+
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 850 nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 300 meters
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Ethernet
- Power Consumption
- 3.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- QK725A High-Performance 10G SFP+ Transceiver
- Height
- 0.5 inches
- Width
- 0.65 inches
- Depth
- 1.0 inches
- Weight
- 0.05 lbs
QK725A Use Case
High-Performance SAN Host Connectivity for Virtualized Data Centers
In a large enterprise virtualization environment, the QK725A-HP B-series 16Gb SFP+LW 10 km XCVR connects hypervisor hosts to the Fibre Channel SAN fabric over single-mode fiber at 16 Gb/s with up to 10 km reach. This deployment delivers low-latency, lossless storage I/O, significantly increasing VM density and application performance while reducing host-to-storage bottlenecks.
Synchronous Replication Link Between Primary and DR Sites
For financial services firms requiring zero-RPO disaster recovery, the QK725A-HP B-series transceiver establishes a dedicated 10 km Fibre Channel link for synchronous storage replication. By ensuring constant 16 Gb/s bandwidth and sub-microsecond latency, this solution guarantees real-time data mirroring, compliance with regulatory SLAs, and uninterrupted business continuity.
Campus Storage Cluster Backbone for High-Availability Applications
In a multisite campus environment, the QK725A-HP B-series 16Gb SFP+LW module interconnects storage clusters across buildings up to 10 km apart. The result is a resilient, high-throughput backbone that supports mission-critical applications—minimizing downtime risk, simplifying capacity scaling, and optimizing cross-site data access for R&D, media processing, and analytics workloads.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QK725A |  AP824A |  N9X01A |  C8S75B |  AJ718A | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP | SFP+ | SFP+ | SFP+ |
| Data Rate | 10G | 10G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 850 nm | 850 nm | 850nm | 850nm | 850 nm |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Multi-mode | Multi-mode | Multi-mode | Multi-mode |
| Max Distance | 300 meters | 300 meters | 300 meters | 300m | 300 meters |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet | 10G Ethernet |
| Network Interface | Ethernet | Ethernet | Ethernet | Fiber | Fiber |
| Power Consumption | 3.5W | 3.5W | 1.5W | 3.5W | 3.5W |
| 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 | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | QK725A High-Performance 10G SFP+ Transceiver | AP824A Optical Transceiver | N9X01A 10G SFP+ Transceiver | C8S75B 10G SFP+ Multi-mode Transceiver | AJ718A 10G SFP+ Optical Transceiver |
| Height | 0.5 inches | 0.3 inches | 0.16 inches | 0.33 inches | 0.57 inches |
| Width | 0.65 inches | 0.47 inches | 0.55 inches | 3.26 inches | 2.22 inches |
| Depth | 1.0 inches | 0.7 inches | 0.65 inches | 1.18 inches | 0.33 inches |
| Weight | 0.05 lbs | 0.1 lbs | 0.2 lbs | 0.10 lbs | 0.04 lbs |
Reviews & Ratings
W
Waqas Latif
4
Strong optical signal.
S
Sandro Meier
4
Installed easily.
M
Mikko Rantanen
5
Stable SAN connectivity.
P
Paul Jenkins
5
Works as specified.
Questions & Answers
What is the HP B-series 16Gb SFP+ LW 10 km transceiver (QK725A)?
The HP B-series QK725A is a 16 Gbps SFP+ long-wavelength optical transceiver for single-mode fiber links up to 10 km, delivering reliable performance in HP networking environments.
What optical data rate does the QK725A support?
The QK725A supports a line rate of 16 Gbps, making it ideal for high-performance SAN and data center applications.
What is the maximum reach of the QK725A transceiver?
This module provides up to 10 km of reach over single-mode fiber at 1310 nm wavelength.
Which fiber type is required for the QK725A?
The QK725A requires single-mode fiber (SMF) to achieve its maximum 10 km link distance.
What connector type does the QK725A use?
It uses a standard LC duplex connector for easy integration into existing fiber infrastructure.
What wavelength does the QK725A operate on?
The transceiver operates at a wavelength of 1310 nm, optimized for long-reach single-mode links.
Is the QK725A hot-swappable?
Yes, the QK725A is hot-pluggable, allowing insertion or removal without powering down the host device.
Which HP devices are compatible with the QK725A?
The QK725A is compatible with HP FlexNetwork and FlexFabric switches and routers featuring SFP+ slots; refer to the HP QuickSpecs for a complete list.
Is the QK725A MSA compliant?
Yes, the QK725A meets industry Multi-Source Agreement (MSA) standards including SFF-8431 and SFF-8472 for physical and diagnostic interfaces.
Does the QK725A support Digital Diagnostics Monitoring (DDM)?
Yes, it supports SFF-8472 Digital Diagnostics Monitoring to report parameters such as optical power, temperature, and voltage in real time.
What are the operating and storage temperature ranges for the QK725A?
Operating temperature: 0 °C to 70 °C (32 °F to 158 °F); storage temperature: -40 °C to 85 °C (-40 °F to 185 °F).
What is the power consumption of the QK725A?
The QK725A consumes less than 1 W per port, ensuring efficient energy use in high-density deployments.
What are the typical use cases for the QK725A?
It is designed for storage area networks (SANs), data center interconnects, and enterprise backbone links requiring 16 Gbps and 10 km reach.
How do I install the QK725A on an HP switch or router?
Simply insert the QK725A module into an available SFP+ slot until it clicks into place, then verify link status in the device management interface.
How can I verify compatibility with my network equipment?
Consult the HP QuickSpecs or compatibility matrix for your specific switch or router model to ensure SFP+ port support.
What warranty coverage does HP provide for the QK725A?
HP backs the QK725A with a one-year limited warranty for replacement and technical support.