Arista Networks QSFP-100G-ER4-D30 Compatible 100G QSFP28 ER4L Transceiver Module
The QSFP-100G-ER4-D30 compatible module serves equipment requiring a 100G QSFP28 interface with 1310nm* optics and a 30km on SMF rating. Connection is through LC duplex. Product data, application guidance and factory verification are presented together to support project teams keep OEM references, delivery records and port schedules aligned.
OEM Part Number: QSFP-100G-ER4-D30HT Part Number: QSFP-ER4L-100GM
Product Highlights
- Compatible alternative to Arista Networks QSFP-100G-ER4-D30
- 100G connectivity at Dual Rate 103.1Gbps and 112Gbps
- Optical wavelength: 1310nm*
- Specified reach: 30km on SMF
- LC duplex / SMF interface
- Digital diagnostic monitoring: Supported
- Operating temperature: 0 to 70°C (32 to 158°F)
Specifications
| Arista Networks Compatible | QSFP-100G-ER4-D30 |
|---|---|
| Manufacturer | HT |
| HT Part Number | QSFP-ER4L-100GM |
| Form Factor | QSFP28 |
| Data Rate | Dual Rate 103.1Gbps and 112Gbps |
| Wavelength | 1310nm* |
| Max Cable Distance | 30km@SMF |
| Connector | LC duplex |
| Media | SMF |
| Transmitter Type | 4 x LAN WDM DML TOSA |
| Receiver Type | 4 x PIN ROSA |
| TX Power | 100G: -2.5~4.5dBm 112G: -1.5~4.5dBm |
| Receiver Sensitivity | 100G: <-15dBm 112G: <-14.5dBm |
| Power Consumption | 4.5W |
| Extinction Ratio | 4dB |
| DDM/DOM | Supported |
| Commercial Temperature Range | 0 to 70°C (32 to 158°F) |
| Modulation (Electrical) | 4x 25G-NRZ |
| Modulation (Optical) | 4x 25G-NRZ |
| Transmit and Dispersion Penalty | 2.5dB |
| Power Budget | 14.4dB |
| CDR | TX and RX |
| FEC Function | Supported |
| Protocols | 100G Ethernet, 100G Telecom Connections |
| Application | 100GBASE Ethernet, Telecom, 5G Network Mid/Backhaul |
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 Dual Rate 103.1Gbps and 112Gbps, wavelength 1310nm*, rated reach 30km on SMF.
Arista Networks Compatibility and Factory Testing
The module is checked for host recognition as QSFP-100G-ER4-D30, 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
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 100G interface configuration must match the remote equipment; sharing a QSFP28 housing alone does not make two transceiver types interoperable.
The single-mode link budget should include fiber attenuation, connectors, splices and panels over the intended 30km on SMF route. Keep the LC duplex interface clean and match the remote optical standard. Consider receiver overload as well as insufficient power on short links.
Optical Acceptance, Diagnostics and Handling
For this model, the specified transmit-power range is 100G: -2.5~4.5dBm 112G: -1.5~4.5dBm; receiver sensitivity is 100G: <-15dBm 112G: <-14.5dBm; the stated optical power budget is 14.4dB. 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.
Frequently Asked Questions
Is this an original Arista Networks transceiver?
No. It is an HT-manufactured compatible alternative for equipment that specifies QSFP-100G-ER4-D30, not an original Arista Networks-branded module.
Which fiber and connector are required?
Use LC duplex with SMF. The specified maximum reach is 30km on SMF, 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
Use QSFP-100G-ER4-D30 as the compatibility cross-reference and QSFP-ER4L-100GM as the HT ordering identity. Keep other reaches or wavelength directions on separate order lines. 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
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.
