845966-B21-AO - AddOn 845966-B21-AO 100GBase-SR4 QSFP28 MMF Transceiver

Name: AddOn 845966-B21-AO 100GBase-SR4 QSFP28 MMF Transceiver
Brand: AddOn
SKU: 845966-B21-AO
Price: 502 USD
Availability: InStock

845966-B21-AO - AddOn 845966-B21-AO 100GBase-SR4 QSFP28 MMF Transceiver | US IT Hardware

Product overview

The AddOn HP 845966-B21 Compatible QSFP28 transceiver delivers 100GBase-SR4 performance over OM4 multi-mode fiber at 850nm wavelength, supporting distances up to 100 meters via MPO connectors. This hot-swappable module operates across 0–70°C and includes Digital Optical Monitoring (DOM) for real-time parameter access. Built to meet or exceed OEM specifications, it is guaranteed 100% compatible with HP equipment and TAA compliant for federal procurement. The transceiver features VCSEL laser transmission with PIN photodiode reception, consuming maximum 3.5W from a +3.3V supply. Ideal for short-reach datacenter backbone and aggregation links, it supports 103.125 Gbps per lane across four lanes without requiring forward error correction. Compliance includes IEEE 802.3bm, QSFP28 MSA, and Class 1 FDA laser safety standards.

100GBase-SR4; 103.125 Gbps per lane, four-lane architecture
OM4 Multi-Mode Fiber; 100m reach at 850nm wavelength
Hot-swappable QSFP28 with Digital Optical Monitoring (DOM)
MPO/MTP-12 connector; TAA compliant for federal procurement
Operating range 0–70°C; max 3.5W power consumption
100% HP compatible; IEEE 802.3bm & QSFP28 MSA certified

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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Receiver Type
Manufacturer part #	845966-B21-AO
Brand	AddOn
Condition	New
Model	845966-B21-AO
Speed	100GBase-SR4; 103.125 Gbps
DDM/DOM	Supported
Technology	100GBase-SR4; Short Range Multi-Mode
Wavelength	850nm
Fiber Count	8 Fibers; 4 Lanes
Product Line	HP Compatible Transceivers
Product Type	QSFP28 Transceiver Module

Compatible systems

Compatible with HPE networking equipment supporting HP 845966-B21 QSFP28 transceiver

HPE Networking Switches
Model: Any HPE switch supporting 845966-B21
100% compatible with HP/HPE equipment per OEM specifications

Best for

Datacenter Backbone
Provides 100Gbps connectivity over OM4 multi-mode fiber up to 100 meters, ideal for high-speed backbone links connecting switches and aggregation points in large data centers.
High-Speed Aggregation
Supports 100GBase-SR4 protocol with four 25Gbps lanes, enabling efficient aggregation of lower-speed connections in enterprise network architectures.
Short-Range Interconnect
Optimized for 100-meter reach over OM4 MMF, suitable for intra-building and campus network connections where single-mode fiber is unnecessary.
Federal/Government Procurement
TAA compliance makes this transceiver eligible for U.S. federal and government IT procurement projects with Buy American requirements.
Hot-Swap Network Upgrades
Hot-swappable design with DOM support enables non-disruptive network upgrades and real-time monitoring of optical signal health in production environments.

Details

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Maximum Distance	100m over OM4 MMF

Transceiver Type	SR4

Transmitter Type	VCSEL Laser; Tx Wave Bandwidth 20 nm (840-860 nm); Extinction Ratio Min 3 dB

Supported Data Rate	103.125 Gbps per lane

Forward Error Correction	No FEC required

Ethernet Applications	100G Ethernet

Power Supply	+3.3V single power supply
Power Consumption	Max 3.5 W

Form Factor	QSFP28 Plug-in Module

Connector	MPO; MTP/MPO-12 (UPC)

Media Type	OM4 Multi-Mode Fiber (MMF)

Weight	0.4 lb shipping weight; 1.27 oz product weight
Dimensions	Product shipping: 1.2 in. x 2.75 in. x 4.75 in.

Compliance Certifications	TAA Compliant; CE; RoHS; Class 1 FDA and IEC60825-1 Laser Safety; IEEE 802.3bm; QSFP28 MSA; SFF-8636; SFF-8665

Relative Humidity	5 to 85% non-condensing
Storage Temperature	-40 to 85°C
Operating Temperature	0 to 70°C; 32 to 158°F

Frequently asked questions

What is the maximum transmission distance for this transceiver?

The 845966-B21-AO supports 100 meters (328 feet) over OM4 multi-mode fiber at 850nm wavelength. This distance is optimized for short-reach datacenter backbone and aggregation links. Longer distances require single-mode fiber transceivers such as 100GBase-LR4 or 100GBase-PSM4.

Is this transceiver compatible with non-HP equipment?

This transceiver is designed as an HP 845966-B21 compatible module and is guaranteed 100% compatible with HP equipment. Compatibility with non-HP vendors depends on their QSFP28 MSA compliance and 100GBase-SR4 support. Verify with your equipment manufacturer before deployment.

What does TAA compliance mean for procurement?

TAA (Trade Agreements Act) compliance certifies that the product meets U.S. federal procurement requirements and is eligible for government and public sector IT purchases. This eliminates compliance risk for federal buyers and qualifies the transceiver for government contracts.

Does this transceiver require forward error correction (FEC)?

No, the 845966-B21-AO does not require forward error correction. It operates at 103.125 Gbps per lane without FEC, simplifying implementation and reducing latency compared to FEC-enabled transceivers.

What monitoring capabilities does Digital Optical Monitoring (DOM) provide?

DOM support enables real-time access to optical parameters including transmit/receive power levels, laser bias current, module temperature, and voltage. This allows network operations teams to monitor link health, predict failures, and optimize performance without manual testing or external equipment.

What is the power consumption of this transceiver?

The transceiver consumes a maximum of 3.5 watts from a single +3.3V power supply. This low power consumption is typical for QSFP28 modules and minimizes thermal load in high-density switch deployments.

Can this transceiver operate in non-datacenter environments?

Yes, the operating temperature range of 0–70°C (32–158°F) supports deployment in controlled enterprise environments, network closets, and standard IT facilities. Storage temperature range is -40–85°C. Verify environmental conditions meet these specifications before installation.

AddOn 845966-B21-AO 100GBase-SR4 QSFP28 MMF Transceiver

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Interface/Ports

Media & Performance

Weight & Dimensions

Compliance Standards

Environmental Condition

Frequently asked questions