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QK727A
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HP B-series 10Gb SFP+LR XCVR
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QK727A
- Description:
- HP B-series 10Gb SFP+LR XCVR
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- Hpe
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QK727A Overview
QK727A is an SFP+ transceiver that supports a 10G data rate, featuring an LC connector and engineered for short-range transmission over multi-mode fiber. It is designed to deliver robust Ethernet connectivity, ensuring reliable performance in high-speed data communications.
QK727A comes in a compact SFP+ form factor with precise physical dimensions, making it ideally suited for data centers, enterprise networks, and telecom applications. Its proven compatibility with major hardware vendors ensures seamless integration into diverse network infrastructures while optimizing power efficiency and operational stability.
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QK727A 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
- Network Interface
- Fiber
- Power Consumption
- 2.5 W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- QK727A 10G SFP+ Transceiver
- Height
- 0.28 inches
- Width
- 1.2 inches
- Depth
- 0.95 inches
- Weight
- 0.04 lbs
QK727A Use Case
High-Speed Data Center Spine-Leaf Connectivity
In hyperscale data centers, the QK727A-HP B-series 10Gb SFP+LR XCVR delivers reliable 10 Gbps links over single-mode fiber up to 10 km for spine-leaf switch interconnects. This solution optimizes server-to-switch traffic with ultra-low latency, scalable bandwidth and minimal signal degradation, ensuring seamless network expansion and peak performance.
Campus Building-to-Building Backbone Link
For distributed enterprise campuses, the QK727A-HP B-series 10Gb SFP+LR XCVR establishes high-capacity 10 Gbps backbone connections between multiple buildings up to 10 km apart. The outcome is a consolidated network fabric that reduces latency, supports critical applications like VoIP and video conferencing, and maintains consistent throughput for business-critical data flows.
High-Performance Computing Cluster Interconnect
In scientific research and HPC environments, the QK727A-HP B-series 10Gb SFP+LR XCVR links compute nodes and storage arrays across remote racks or adjacent facilities over single-mode fiber. The clear benefit is accelerated data transfer, elimination of network bottlenecks and sustained low-latency 10 Gbps communication for parallel processing and large-scale simulations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| QK727A |  AJ906A |  B7E21A |  841716-B21 |  AJ717A | |
|---|---|---|---|---|---|
| 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 | 1310 nm | 850 nm | 850 nm | 1310nm |
| Transmission Distance | Short-Range | Short-Range | Short-Range | Short-Range | Short-Range |
| Fiber Type | Multi-mode | Single-mode | Multi-mode | Multi-mode | Single-mode |
| Max Distance | 300 meters | 10 km | 300 meters | 300 meters | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Power Consumption | 2.5 W | 3.5W | 1.5W | N/A | 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 | QK727A 10G SFP+ Transceiver | AJ906A 10G SFP+ Transceiver | B7E21A SFP+ 10GBASE-SR Transceiver | 841716-B21 10GBASE-SR SFP+ Transceiver | AJ717A SFP Transceiver Module |
| Height | 0.28 inches | 0.55 inches | 0.17 inches | N/A | 0.3 inches |
| Width | 1.2 inches | 0.55 inches | 0.28 inches | N/A | 0.9 inches |
| Depth | 0.95 inches | 2.5 inches | 1.0 inches | N/A | 1.2 inches |
| Weight | 0.04 lbs | 0.15 lbs | 0.05 lbs | N/A | 0.15 lbs |
Reviews & Ratings
U
Usama Jamil
5
Good compatibility with switches.
F
Felix Braun
4
Easy installation.
M
Mikko Savolainen
5
Reliable optics.
J
Jonathan King
4
Satisfied overall.
Questions & Answers
What is the HP B-series 10Gb SFP+LR XCVR (QK727A)?
The HP B-series 10Gb SFP+LR XCVR (QK727A) is a 1310 nm long-range 10 Gigabit SFP+ optical transceiver module for 10G Ethernet and Fibre Channel over single-mode fiber.
What is the maximum transmission distance of the QK727A?
The QK727A supports a maximum reach of up to 10 km over single-mode fiber at a 10 Gb/s data rate.
Which fiber type is compatible with this transceiver?
The QK727A is compatible with single-mode fiber (OS1/OS2) for long-range connectivity.
What connector type does the HP 10Gb SFP+LR use?
This transceiver features an LC duplex connector for single-mode fiber connections.
What wavelength does the HP SFP+LR module operate at?
The HP QK727A operates at a nominal 1310 nm wavelength optimized for 10 km transmission.
Is the HP B-series 10Gb SFP+LR hot-swappable?
Yes, the QK727A is hot-swappable, allowing installation or removal without powering down the network switch.
Which HP switches support the QK727A transceiver?
The QK727A is compatible with HP FlexFabric, FlexNetwork, and ProCurve switches featuring SFP+ ports.
Can I use the QK727A transceiver with non-HP switches?
The QK727A is firmware-locked for HP equipment; third-party compatibility depends on your switch vendor’s approved transceiver list.
What is the power consumption of the HP 10Gb SFP+LR module?
The QK727A operates with a maximum power consumption of 1 W under full-load conditions.
What are the operating temperature specifications?
This transceiver supports operating temperatures from 0 °C to 70 °C (32 °F to 158 °F).
How do I install the HP B-series 10Gb SFP+LR XCVR?
Insert the QK727A into an available SFP+ port until it clicks, then verify link status through your switch’s management interface.
What is the mean time between failures (MTBF) for the QK727A?
The HP QK727A features an MTBF exceeding 1,000,000 hours under normal operating conditions.
Does the QK727A support Digital Diagnostics Monitoring (DDM)?
Yes, the QK727A includes DDM (DOM) for real-time monitoring of optical power, temperature, and transceiver voltage.
What warranty does the HP B-series 10Gb SFP+LR come with?
The QK727A is covered by HP’s limited lifetime warranty when used in supported HP hardware.
How can I troubleshoot connectivity issues with the QK727A?
Verify fiber polarity, clean connector endfaces, confirm SFP+ port compatibility, and check link status LEDs on your switch.
What packaging and part numbers are associated with the QK727A?
The QK727A ships in an individual antistatic bag under part number QK727A and is included in HP’s B-series SFP+ transceiver family packaging.