Arista Networks QSFP-100G-SR4-I Compatible 100G QSFP28 SR4 Transceiver Module
This Arista Networks QSFP-100G-SR4-I compatible transceiver provides 100G connectivity in a hot-swappable QSFP28 package. Its optical design operates at 850nm for up to 70m on OM3 / 100m on OM4, using MTP/MPO-12 Male. Complete parameters and related OEM references help project teams keep OEM references, delivery records and port schedules aligned.
OEM Part Number: QSFP-100G-SR4-IHT Part Number: QSFP-SR4-100G-I
Product Highlights
- Compatible alternative to Arista Networks QSFP-100G-SR4-I
- 100G connectivity at 103.125Gbps (4x 25.78Gbps)
- Optical wavelength: 850nm
- Specified reach: 70m on OM3 / 100m on OM4
- MTP/MPO-12 Male / MMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: -40 to 85°C (-40 to 185°F)
Specifications
| Arista Networks Compatible | QSFP-100G-SR4-I |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-SR4-100G-I |
| Form Factor | QSFP28 |
| Max Data Rate | 103.125Gbps (4x 25.78Gbps) |
| Wavelength | 850nm |
| Max Cable Distance | 70m@OM3/100m@OM4 |
| Connector | MTP/MPO-12 Male |
| Media | MMF |
| Transmitter Type | VCSEL 850nm |
| Receiver Type | PIN |
| TX Power | -6~2.4dBm |
| RX Power | -10.3~ 2.4dBm |
| Power Budget | 4.3dB |
| Extinction Ratio | ＞2dB |
| Typical Power Consumption | <2.5W |
| DDM/DOM | Supported |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 4x 25G-NRZ |
| Packaging Technology | COB Packaging |
| Industrial Temperature Range | -40 to 85°C (-40 to 185°F) |
| CDR (Clock and Data Recovery) | TX & RX Built-in CDR |
| Inbuilt FEC | No |
| Bit Error Ratio (BER) | 1E-12 |
| MTBF | 1,160,000 Hours |
| Protocols | IEEE 802.3bm, QSFP28 MSA, SFF-8665, SFF-8636, RoHS, CPRI, eCPRI |
Project Documentation and Traceability
Large deployments are easier to audit when the order code, optical standard and endpoint record agree. Keep the OEM reference in the compatibility document and the HT part number on the packing list. Labels and carton groups can be arranged by rack or port plan so installers need not identify modules by appearance. For this model, the principal parameters are data rate 103.125Gbps (4x 25.78Gbps), wavelength 850nm, rated reach 70m on OM3 / 100m on OM4.
Arista Networks Compatibility and Factory Testing
The module is checked for host recognition as QSFP-100G-SR4-I, link establishment and diagnostic reporting. Physical cage fit alone is not treated as evidence of compatibility. Equipment model, hardware revision and software release can be reviewed before dispatch where platform behavior is uncertain.
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 MTP/MPO-12 Male 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.
The industrial temperature rating makes this version appropriate for controlled outdoor cabinets, transport nodes and other installations exposed to wider ambient temperature variation. Adequate airflow, protected cable routing and host-platform temperature limits still apply.
The multimode channel should use the fiber grade associated with the stated 70m on OM3 / 100m on OM4 reach. Keep the MTP/MPO-12 Male end faces clean and avoid tight bends. Different multimode standards are not interchangeable merely because they share a connector.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is -6~2.4dBm; the stated optical power budget is 4.3dB. 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.
Frequently Asked Questions
Is this an original Arista Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-100G-SR4-I, not an original Arista Networks-branded module.
Which fiber and connector are required?
Use MTP/MPO-12 Male with MMF. The specified maximum reach is 70m on OM3 / 100m 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.
Ordering Information
Quote HT part number QSFP-SR4-100G-I together with OEM reference QSFP-100G-SR4-I 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.
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.
Quality Assurance and Packaging
Before packing, the module receives interface inspection, identification and link checks. Protective packaging avoids pressure on the connector and latch. Customer references, rack groups and project packing lists can be added for volume orders.
