10/100BASE-T SFPArista QSFP112-XDR4-400G Compatible 400G QSFP112 XDR4 Transceiver Module
This Arista QSFP112-XDR4-400G compatible transceiver provides 400G connectivity in a hot-swappable QSFP112 package. Its optical design operates at 1310nm for up to 2km, using MTP/MPO-12 (APC). Complete parameters and related OEM references help high-density deployments balance optical performance, port access and thermal planning.
OEM Part Number: QSFP112-XDR4-400GHT Part Number: QSFP112-XDR4-400G
Product Highlights
- Compatible alternative to Arista QSFP112-XDR4-400G
- 400G connectivity at 425Gbps (4x106.25Gb/s)
- Optical wavelength: 1310nm
- Specified reach: 2km
- MTP/MPO-12 (APC) / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| HT Part Number | QSFP112-XDR4-400G |
|---|---|
| Manufacturer | HT |
| Form Factor | QSFP112 |
| Max. Data Rate | 425Gbps (4x106.25Gb/s) |
| Wavelength | 1310nm |
| Max. Cable Distance | 2km |
| Connector | MTP/MPO-12 (APC) |
| Media | SMF |
| Transmitter Type | EML |
| Receiver Type | PIN |
| TX Power | -3.1~4dBm |
| Minimum Receiver Power | -7.1dBm |
| Power Budget | 4dB |
| Receiver Overload | 4dBm |
| Max. Power Consumption | 10W |
| Extinction Ratio | >3.5dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x100G-PAM4 |
| Modulation (Optical) | 4x100G-PAM4 |
| DSP | TX and RX |
| Inbuilt FEC | No |
| Core Size | 9μm |
| Packaging Technology | COB |
| MTBF | 6140134 Hours (@40°C, 60% CL)3391682 Hours (@40°C, 90% CL)5185062 Hours (@50°C, 60% CL)2776913 Hours (@50°C, 90% CL) |
| Application | 400G Ethernet |
| Protocols | QSFP-112 MSA, CMIS Rev 5.2, IEEE 802.3bs, OIF-CEI-112G-VSR-PAM4 |
Applications and Optical Link Design
Use this module for equipment interconnection over the specified single-mode fiber plant, including enterprise backbone, campus, metro or data-center interconnect links according to its rated distance. Confirm that both ends use the same optical standard and wavelength plan, and allow for connector, splice and patch-panel loss within the stated power budget.
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.
Before commissioning, measure the complete single-mode channel against the stated budget for 2km. Inspect every MTP/MPO-12 (APC) connection and record diagnostic power where supported. Both ends must agree on rate, wavelength and optical standard.
Quality Assurance and Packaging
Each QSFP112-XDR4-400G compatible module is inspected, powered up and functionally checked before protective packing. Dust caps and individual trays shield the interface during transport. 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 -3.1~4dBm; the stated optical power budget is 4dB. A sound acceptance record includes link state, diagnostic temperature, supply voltage and transmit or receive levels where the host exposes them. Compare the readings with the stated ranges rather than treating any received light as proof of adequate margin. Persistent alarms or borderline values should trigger an end-face and complete-channel inspection. 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.
High-Density Port and Thermal Planning
In a densely populated chassis, connector access and airflow form part of the optical-link design. Confirm that neighboring modules and patch leads leave room for latch operation, and include listed power consumption in the host thermal budget. Assess port density together with fiber management. For this model, the principal parameters are data rate 425Gbps (4x106.25Gb/s), wavelength 1310nm, rated reach 2km.
Ordering Information
Quote HT part number QSFP112-XDR4-400G together with OEM reference QSFP112-XDR4-400G 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.
Arista Compatibility and Factory Testing
Compatibility testing for QSFP112-XDR4-400G combines identification with a live link and available transmit, receive and alarm information. Connector condition is inspected separately. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
Frequently Asked Questions
Is this an original Arista transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP112-XDR4-400G, not an original Arista-branded module.
Which fiber and connector are required?
Use MTP/MPO-12 (APC) with SMF. The specified maximum reach is 2km, 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.
