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Arista QSFP-100G-LRL4 100GBASE-LRL4 QSFP28 2 km SMF
100 Gbps 100GBASE-LRL4 QSFP28 transceiver, 4 lambda WDM, 1310 nm band, up to 2 km SMF, 0 to 70 °C case temperature.
- Manufacturer
- Arista Networks, Inc.
- Mfr part number
- QSFP-100G-LRL4
- Series
- 100G QSFP28
- Category
- Fiber optic transceiver modules
- Datasheet
- QSFP-100G-LRL4 datasheet (PDF)
QSFP-100G-LRL4 specifications
| Attribute | Value |
|---|---|
| Part Number | QSFP-100G-LRL4 |
| Manufacturer | Arista Networks, Inc. |
| Brand | Arista Networks |
| Standard | 100GBASE-LRL4 |
| Form Factor | QSFP28, hot-swappable |
| Data Rate | 100 Gbps |
| Wavelength | 4 lambda WDM, 1310 nm band |
| Media | Duplex single-mode (G.652) |
| Max Distance | 2 km SMF |
| Connector | Duplex LC |
| Tx Power | −6.0 to +4.5 dBm/lane |
| Rx Power | −10.0 to +4.5 dBm/lane |
| Max Power | 4.0 W |
| Case Temp | 0 °C to 70 °C |
| Dimensions | 13.5 × 18.4 × 72.4 mm |
| Reach detail | 2 km on duplex single-mode fiber (interoperates with 100GBASE-LR4 up to 2 km) |
All values are from Arista Networks' published Optics Modules and Cables data sheet (Sep 2026). Confirm platform support for your switch with us before ordering.
About the Arista QSFP-100G-LRL4
The Arista QSFP-100G-LRL4 is a hot-swappable QSFP28 100GBASE-LRL4 optical transceiver for 100 Gbps Ethernet over duplex single-mode (G.652), with a Duplex LC interface and reach of up to 2 km SMF. Typical uses: 100G leaf-spine fabrics, DC interconnect, 4 × 25G breakout and service-provider aggregation.
- 100 Gbps 100GBASE-LRL4 up to 2 km SMF
- Interoperates with 100G-LR4 up to 2 km
- Duplex LC single-mode
- Duplex LC connector · Duplex single-mode (G.652)
- Genuine Arista optic · GST invoice · pan-India dispatch
QSFP-100G-LRL4: frequently asked questions
What is the Arista QSFP-100G-LRL4?
The Arista QSFP-100G-LRL4 is a QSFP28 100GBASE-LRL4 module from Arista Networks for 100 Gbps links. It plugs into a 100G QSFP port on an Arista switch and is used for 100G leaf-spine fabrics, DC interconnect, 4 × 25G breakout and service-provider aggregation.
What is the maximum distance of the QSFP-100G-LRL4?
Arista specifies the QSFP-100G-LRL4 for 2 km on duplex single-mode fiber (interoperates with 100GBASE-LR4 up to 2 km).
What are the transmit and receive power levels of the QSFP-100G-LRL4?
Per Arista's published optics data sheet, the QSFP-100G-LRL4 transmits −6.0 to +4.5 dBm/lane and receives −10.0 to +4.5 dBm/lane.
Which fiber and connector does the QSFP-100G-LRL4 need?
The QSFP-100G-LRL4 uses a Duplex LC connector on duplex single-mode (G.652), at 4 lambda WDM, 1310 nm band. Both ends of the link must use the same optical standard.
Is the QSFP-100G-LRL4 compatible with my Arista switch?
It works in Arista switches with 100G QSFP ports that support this optic. Send us your switch model and EOS version and we will check it against Arista's Transceiver and Cable Guide before dispatch, so you only receive a module that works in your port.
QSFP-100G-LR4 vs QSFP-100G-LRL4: do they work together?
Yes. Arista states optical interoperability between 100GBASE-LR4 and 100GBASE-LRL4 up to 2 km. LR4 is needed for the full 10 km.
Is your QSFP-100G-LRL4 genuine Arista?
Yes. Next Gen Networks supplies original Arista Networks optics, not third-party lookalikes or grey-market stock. Every unit is checked before dispatch, and we share the serial numbers on request so you can verify them in EOS ('show inventory').
What is the QSFP-100G-LRL4 price in India and how do I order?
The Arista QSFP-100G-LRL4 price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in and we reply with a GST quote.
How much power does the QSFP-100G-LRL4 draw?
Arista lists maximum power of 4.0 W for the QSFP-100G-LRL4. Check your switch's per-port power budget for dense deployments.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Arista family datasheet
Related Arista parts
QSFP-100G-LR4100GBASE-LR4, 10 km SMFQSFP-100G-LR100GBASE-LR, 10 km SMFQSFP-100G-SR4100GBASE-SR4, 70 m OM3 / 100 m OM4QSFP-100G-SR4-E100GBASE-SR4, 50 m OM4 (no FEC)QSFP-100G-XSR4100GBASE-XSR4, 150 m OM3 / 300 m OM4QSFP-100G-SR1.2100GBASE-SR1.2, 70 m OM3 / 100 m OM4Government, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
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