HPE 845972-B21 100Gb QSFP28 Transceiver Bidirectional

About HPE 845972-B21 100Gb QSFP28 Bidirectional Transceiver in Bangladesh

The HPE 845972-B21 is a 100Gb QSFP28 Bidirectional optical transceiver designed to provide high-speed Ethernet connectivity for compatible HPE networking and data-center environments. It uses the QSFP28 form factor and supports the 4x25Gb Bidirectional standard, delivering 100GbE connectivity over multimode fiber.

HPE specifies the 845972-B21 as a 100Gb QSFP28 Bidirectional Transceiver with an LC interface, 855nm / 908nm wavelengths and support for OM3, OM4 and OM5 multimode fiber. The maximum supported distance is up to 150 meters when used with OM5 fiber. :contentReference[oaicite:2]{index=2}

HPE 845972-B21 100Gb QSFP28 Transceiver Specifications & Features

Overview

The HPE 845972-B21 provides 100GbE optical connectivity in a compact QSFP28 form factor. Its Bidirectional optical architecture enables 100Gb Ethernet transmission over multimode fiber using LC connectivity, making it particularly useful where an LC-based 100G solution is preferred.

HPE describes this transceiver as supporting the 4x25-Gigabit Bidirectional standard and providing 100-Gigabit connectivity up to 100 meters in its QuickSpecs. :contentReference[oaicite:3]{index=3}

Buy HPE 845972-B21 100Gb QSFP28 Transceiver in Bangladesh

Purchase the HPE 845972-B21 100Gb QSFP28 Bidirectional Transceiver from Datacom Technologies (BD). We supply HPE networking transceivers, optical modules, enterprise networking equipment and data-center hardware in Bangladesh with competitive pricing, technical consultation and nationwide delivery.

Key Features

• 100GbE high-speed optical connectivity
• QSFP28 form factor
• Bidirectional 100G optical technology
• Supports 4x25Gb Bidirectional standard
• Duplex LC connector
• 855nm / 908nm wavelength
• Multimode Fiber support
• Supports OM3, OM4 and OM5 fiber
• Up to 70m over OM3
• Up to 100m over OM4
• Up to 150m over OM5
• Maximum power consumption of 3.5W
• Designed for compatible HPE networking environments

Applications

• Data Center Networking
• High-Speed Ethernet Networks
• Server-to-Switch Connectivity
• Switch-to-Switch Interconnects
• Enterprise Network Backbones
• High-Performance Computing Infrastructure
• Data Center Spine-and-Leaf Networks
• HPE Server Networking
• HPE Networking Infrastructure
• Multimode Fiber 100GbE Links

100GbE High-Speed Connectivity

The HPE 845972-B21 provides a 100GbE optical interface for high-bandwidth networking applications. It is designed for environments where large volumes of network traffic must be transferred between servers, switches and other network infrastructure.

100GbE connectivity is well suited to modern data centers, high-performance computing environments, virtualization infrastructure and high-throughput enterprise networks.

QSFP28 Form Factor

The 845972-B21 uses the QSFP28 form factor. QSFP28 is widely used for 100GbE networking and provides a compact optical interface suitable for high-density switch and server connectivity.

HPE's official specifications identify the transceiver type as QSFP28. :contentReference[oaicite:4]{index=4}

100GBase-BiDi Technology

The HPE 845972-B21 supports the 100GBase-BiDi optical standard. HPE identifies it as a 100-Gigabit transceiver supporting the 4x25-Gigabit Bidirectional standard. :contentReference[oaicite:5]{index=5}

The Bidirectional architecture uses two optical wavelengths over multimode fiber, allowing 100GbE connectivity through an LC-based optical interface.

LC Duplex Connector

The HPE 845972-B21 uses a Duplex LC connector. HPE's current product specification lists Duplex LC as the connector type. :contentReference[oaicite:6]{index=6}

LC connectivity can be advantageous in data-center environments where existing multimode fiber infrastructure uses LC patch cords and panels.

855nm / 908nm Wavelength

The transceiver operates using 855nm and 908nm optical wavelengths. HPE's QuickSpecs identifies these wavelengths for the 100Gb QSFP28 Bidirectional Transceiver. :contentReference[oaicite:7]{index=7}

These wavelengths are designed for multimode fiber transmission rather than long-distance single-mode fiber applications.

Multimode Fiber Support

The HPE 845972-B21 is designed for multimode fiber. HPE specifies compatibility with OM3, OM4 and OM5 fiber types. :contentReference[oaicite:8]{index=8}

These distances are HPE-specified maximums and depend on compliant fiber infrastructure and installation conditions. :contentReference[oaicite:9]{index=9}

Short-Reach 100G Networking

The 845972-B21 is a short-reach 100G optical solution intended for multimode fiber environments. HPE's transceiver guide identifies it as a Short Reach 100G product and specifies OM3 or better multimode fiber. :contentReference[oaicite:10]{index=10}

This makes the module particularly appropriate for intra-data-center links where network equipment is located within tens or hundreds of meters.

Data Center Networking

The HPE 845972-B21 is suitable for high-density data-center network deployments where 100GbE connectivity is required.

Typical applications include switch uplinks, server networking, spine-and-leaf architectures and high-bandwidth interconnects between compatible HPE networking equipment.

High-Bandwidth Server Connectivity

Modern enterprise servers can generate significant network traffic through virtualization, storage networking, cloud applications, distributed computing and data-intensive workloads.

The 100GbE capability of the 845972-B21 provides the bandwidth required for compatible high-performance server and network infrastructure.

Power Consumption

HPE specifies a maximum power consumption of 3.5W and a supply voltage of 3.3V for the 845972-B21. :contentReference[oaicite:11]{index=11}

Actual system-level power consumption can vary depending on the host networking equipment, operating conditions and workload.

Operating Environment

HPE specifies an operating temperature range of 10°C to 60°C and operating relative humidity of 5% to 95%, noncondensing. The specified non-operating/storage temperature range is -40°C to 85°C. :contentReference[oaicite:12]{index=12}

Optical Power Characteristics

HPE's transceiver guide provides optical power specifications for the 845972-B21, including transmit power of approximately -6.0 to +4.0 dBm and receive power of approximately -7.9 to +4.0 dBm. :contentReference[oaicite:13]{index=13}

Optical performance should be evaluated together with the fiber type, connector quality, patch-panel losses and the specifications of the connected networking equipment.

HPE Networking Compatibility

The 845972-B21 is an HPE Server SKU and HPE documentation provides compatibility information for several HPE networking platforms. The HPE transceiver guide specifically lists support across multiple HPE Aruba Networking switch families when the required software versions are installed. :contentReference[oaicite:14]{index=14}

Compatibility is platform- and software-dependent. Always verify the exact switch, network adapter or server configuration before deployment.

Compatibility with OM3, OM4 and OM5

The HPE 845972-B21 supports OM3, OM4 and OM5 multimode fiber. HPE specifies maximum distances of 70 meters on OM3, 100 meters on OM4 and 150 meters on OM5. :contentReference[oaicite:15]{index=15}

For fiber patch cords, HPE recommends Ultra Physical Contact (UPC) surface termination/polish and does not recommend Angled Physical Contact (APC) termination for this transceiver. :contentReference[oaicite:16]{index=16}

HPE 845972-B21 vs 100G QSFP28 SR4

The key practical difference is the optical interface: the 845972-B21 uses Duplex LC and Bidirectional optics, while conventional 100G SR4 modules commonly use MPO/MTP connectors.

Installation Considerations

• Verify QSFP28 port compatibility before installation.
• Confirm that the host platform supports the 845972-B21.
• Use compatible OM3, OM4 or OM5 multimode fiber.
• Use compatible Duplex LC fiber connectivity.
• Use UPC termination as recommended by HPE.
• Verify required switch or adapter firmware.
• Confirm the required 100GbE operating mode.
• Keep optical connectors clean before installation.

Benefits

• 100GbE high-speed connectivity
• Compact QSFP28 form factor
• 100GBase-BiDi optical technology
• Duplex LC connectivity
• Multimode fiber support
• OM3, OM4 and OM5 compatibility
• Up to 150m reach on OM5
• Suitable for high-density data centers
• Suitable for high-bandwidth enterprise networks
• HPE-supported networking solution

Why Buy HPE 845972-B21 from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies HPE networking transceivers, QSFP28 optical modules, enterprise networking equipment and data-center hardware in Bangladesh. Customers can receive competitive pricing, technical consultation, deployment assistance and nationwide delivery.

• Call/WhatsApp: +8801748173213
• Email: sales@datacom.com.bd
• Alternative Email: datacomtechnologiesbd@gmail.com
• Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, Dhaka-1205, Bangladesh

Frequently Asked Questions (FAQ)

Q1: What is HPE 845972-B21?
The HPE 845972-B21 is a 100Gb QSFP28 Bidirectional optical transceiver for compatible HPE networking environments.

Q2: What is the data rate?
It provides 100GbE connectivity.

Q3: What form factor does 845972-B21 use?
It uses the QSFP28 form factor.

Q4: What connector does HPE 845972-B21 use?
It uses a Duplex LC connector. :contentReference[oaicite:17]{index=17}

Q5: What wavelengths does it use?
HPE specifies 855nm / 908nm wavelengths for the 845972-B21. :contentReference[oaicite:18]{index=18}

Q6: What type of fiber does it support?
It supports multimode fiber, including OM3, OM4 and OM5. :contentReference[oaicite:19]{index=19}

Q7: What is the maximum transmission distance?
HPE specifies up to 70m on OM3, 100m on OM4 and 150m on OM5. :contentReference[oaicite:20]{index=20}

Q8: Is HPE 845972-B21 a 100G SR4 transceiver?
No. It is a 100GBase-BiDi transceiver. It uses Duplex LC connectivity rather than the MPO/MTP interface commonly associated with SR4 modules.

Q9: Is 845972-B21 suitable for single-mode fiber?
No. HPE's documentation specifies multimode fiber for this transceiver. :contentReference[oaicite:21]{index=21}

Q10: What is the maximum power consumption?
HPE specifies a maximum power consumption of 3.5W. :contentReference[oaicite:22]{index=22}

Q11: What voltage does the transceiver use?
The specified supply voltage is 3.3V. :contentReference[oaicite:23]{index=23}

Q12: Which fiber should be used with 845972-B21?
Use compatible OM3, OM4 or OM5 multimode fiber with Duplex LC connectivity. HPE recommends UPC termination for fiber patch cords. :contentReference[oaicite:24]{index=24}

Q13: Is APC fiber recommended?
No. HPE specifically recommends UPC surface termination/polish and states that APC is not recommended for this transceiver. :contentReference[oaicite:25]{index=25}

Q14: Is HPE 845972-B21 compatible with every QSFP28 port?
No. QSFP28 physical compatibility does not guarantee optical, firmware or platform compatibility. Verify the exact HPE server, network adapter or switch before deployment.

Q15: Where can I buy HPE 845972-B21 in Bangladesh?
You can contact Datacom Technologies (BD) for HPE QSFP28 transceivers, networking optics, switches and enterprise data-center hardware with competitive pricing and nationwide delivery.