Generic QSFP112-SR4-400G Compatible 400G QSFP112 SR4 Transceiver Module

Generic QSFP112-SR4-400G Compatible 400G QSFP112 SR4 Transceiver Module

The QSFP112-SR4-400G compatible module serves equipment requiring a 400G QSFP112 interface with 850nm optics and a 30m on OM3 / 50m on OM4 rating. Connection is through MPO-12/APC. Product data, application guidance and factory verification are presented together to support data-center designers evaluate optical reach, rack integration and host compatibility together.

OEM Part Number: QSFP112-SR4-400GHT Part Number: QSFP112-SR4-400G

Product Highlights

  • Compatible alternative to Generic QSFP112-SR4-400G
  • 400G connectivity at 425Gbps (4x106.25Gb/s)
  • Optical wavelength: 850nm
  • Specified reach: 30m on OM3 / 50m on OM4
  • MPO-12/APC / MMF interface
  • Digital diagnostic monitoring: Supported
  • Operating temperature: 0 to 70°C (32 to 158°F)

Specifications

HT Part NumberQSFP112-SR4-400G
ManufacturerHT
Form FactorQSFP112
Max. Data Rate425Gbps (4x106.25Gb/s)
Wavelength850nm
Max. Cable Distance30m@OM3/50m@OM4
ConnectorMPO-12/APC
MediaMMF
Transmitter TypeVCSEL
Receiver TypePIN
TX Power-4.6~4dBm
Minimum Receiver Power-6.4dBm
Power Budget1.8dB
Receiver Overload4.0dBm
Max. Power Consumption9W
Extinction Ratio>2.5dB
DDM/DOMSupported
Commercial Temperature Range0 to 70°C (32 to 158°F)
Modulation (Electrical)4x100G-PAM4
Modulation (Optical)4x100G-PAM4
CDR (Clock and Data Recovery)TX and RX
Inbuilt FECYes
MTBF1420071 (@40°C, 90% CL)
Packaging TechnologyCOB
ProtocolsQSFP112 MSA, CMIS Rev5.0, IEEEdf-2024

Applications and Optical Link Design

Typical deployments include switch-to-switch, switch-to-server and aggregation links inside a data hall or between adjacent equipment rooms. The MPO-12/APC interface connects to the specified multimode cabling, and the stated reach depends on fiber grade and link loss. Keep this interface on the matching multimode optical standard rather than connecting it directly to a single-mode wavelength or reach variant.

Before deployment, check the host port type, supported data rate and firmware requirements. The 400G interface configuration must match the remote equipment; sharing a QSFP112 housing alone does not make two transceiver types interoperable.

For this multimode module, confirm fiber grade, modal bandwidth and total loss before commissioning. The 30m on OM3 / 50m on OM4 figure applies only under suitable cabling conditions. Inspect every MPO-12/APC mating point and match the remote optical standard.

Quality Assurance and Packaging

Quality control covers the optical or electrical interface, host identification and operating link. The verified unit is then individually protected and cartoned. Customer references, rack groups and project packing lists can be added for volume orders.

Optical Acceptance, Diagnostics and Handling

For this model, the specified transmit-power range is -4.6~4dBm; the stated optical power budget is 1.8dB. Digital diagnostics make later maintenance easier when baseline values are captured at installation. Save the initial readings with the port and OEM reference, then investigate meaningful changes rather than reacting to a single transient value. Diagnostic support depends on the host as well as the module, so unavailable fields should be confirmed with the platform documentation. Diagnostic monitoring is listed as Supported. Before every insertion, keep dust caps in place until the patch lead is ready, avoid touching the optical end face and use an appropriate inspection and cleaning procedure. Do not look into an active optical interface.

Data-Center Optical Design and Airflow

Select the module by optical standard, reach and rack layout. Check the complete fiber channel, including panels and connectors, and keep dense bundles from blocking front-panel airflow. Account for listed power consumption and preserve enough space to remove a module without disturbing adjacent links. For this model, the principal parameters are data rate 425Gbps (4x106.25Gb/s), wavelength 850nm, rated reach 30m on OM3 / 50m on OM4.

Ordering Information

Quote HT part number QSFP112-SR4-400G together with OEM reference QSFP112-SR4-400G and quantity. Add the host model and software release when pre-order verification is required. Neutral labels, customer packaging and project-specific compatibility review are available on request.

Generic Compatibility and Factory Testing

Factory verification starts with the expected QSFP112-SR4-400G identity and finishes with an operating host link. EEPROM data, diagnostic visibility and the stated optical parameters are assessed together. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.

Frequently Asked Questions

Is this an original equipment manufacturer transceiver?

No. It is an HT-manufactured compatible transceiver supplied under our own manufacturer identity, not an original equipment manufacturer module.

Which fiber and connector are required?

Use MPO-12/APC with MMF. The specified maximum reach is 30m on OM3 / 50m on OM4, subject to fiber quality and total link loss.

Can it be mixed with another wavelength or reach version?

Only when the two ends share the same optical standard, wavelength plan and supported data rate. Check the exact part numbers and link budget rather than relying only on the module form factor.

Shipping and Lead Time

Standard configurations normally ship within one to three working days, with production lead times confirmed for larger quantities. International courier, air freight and sea freight are available; customer courier accounts and nominated forwarders are accepted.


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