- Home
- Optical Transceivers
- Arista Networks
- 200G
- QDD-200G-2LR4
Actual product photos
available on request
To keep listings accurate, we share real photos of the exact QDD-200G-2LR4 stock you will receive, including the label, serial number and packaging.
Request photos from our teamPhotos are usually shared within working hours on WhatsApp or email.
Arista QDD-200G-2LR4 2 × 100GBASE-LR4 QSFP-DD 10 km SMF
2 × 100 Gbps 2 × 100GBASE-LR4 QSFP-DD transceiver, LAN-WDM 4 lambda per link, up to 10 km SMF, 0 to 70 °C case temperature.
- Manufacturer
- Arista Networks, Inc.
- Mfr part number
- QDD-200G-2LR4
- Series
- 200G QSFP-DD
- Category
- Fiber optic transceiver modules
- Datasheet
- QDD-200G-2LR4 datasheet (PDF)
QDD-200G-2LR4 specifications
| Attribute | Value |
|---|---|
| Part Number | QDD-200G-2LR4 |
| Manufacturer | Arista Networks, Inc. |
| Brand | Arista Networks |
| Standard | 2 × 100GBASE-LR4 |
| Form Factor | QSFP-DD, hot-swappable |
| Data Rate | 2 × 100 Gbps |
| Wavelength | LAN-WDM 4 lambda per link |
| Media | 2 pairs duplex single-mode |
| Max Distance | 10 km SMF |
| Connector | 2 × CS |
| Tx Power | −4.3 to +4.5 dBm/lane |
| Rx Power | −10.6 to +4.5 dBm/lane |
| Max Power | 8 W |
| Case Temp | 0 °C to 70 °C |
| Dimensions | 13.5 × 18.4 × 78.3–93.3 mm |
| Reach detail | 10 km over two pairs of duplex single-mode fiber (2 × 100GBASE-LR4) |
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 QDD-200G-2LR4
The Arista QDD-200G-2LR4 is a hot-swappable QSFP-DD 2 × 100GBASE-LR4 optical transceiver for 2 × 100 Gbps Ethernet over 2 pairs duplex single-mode, with a 2 × CS interface and reach of up to 10 km SMF. Typical uses: 200G fabrics, dual-100G aggregation and high-density 25G/10G fan-out.
- 2 × 100 Gbps 2 × 100GBASE-LR4 up to 10 km SMF
- Two 100G-LR4 links in one QSFP-DD port
- Interoperates with QSFP-100G-LR4
- 2 × CS connector · 2 pairs duplex single-mode
- Genuine Arista optic · GST invoice · pan-India dispatch
QDD-200G-2LR4: frequently asked questions
What is the Arista QDD-200G-2LR4?
The Arista QDD-200G-2LR4 is a QSFP-DD 2 × 100GBASE-LR4 module from Arista Networks for 2 × 100 Gbps links. It plugs into a QSFP-DD port on an Arista switch and is used for 200G fabrics, dual-100G aggregation and high-density 25G/10G fan-out.
What is the maximum distance of the QDD-200G-2LR4?
Arista specifies the QDD-200G-2LR4 for 10 km over two pairs of duplex single-mode fiber (2 × 100GBASE-LR4).
What are the transmit and receive power levels of the QDD-200G-2LR4?
Per Arista's published optics data sheet, the QDD-200G-2LR4 transmits −4.3 to +4.5 dBm/lane and receives −10.6 to +4.5 dBm/lane.
Which fiber and connector does the QDD-200G-2LR4 need?
The QDD-200G-2LR4 uses a 2 × CS connector on 2 pairs duplex single-mode, at LAN-WDM 4 lambda per link. Both ends of the link must use the same optical standard.
Is the QDD-200G-2LR4 compatible with my Arista switch?
It works in Arista switches with QSFP-DD 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.
Does the 200G-2LR4 work with my existing QSFP-100G-LR4 optics?
Yes. It carries two independent 100GBASE-LR4 links and interoperates with QSFP-100G-LR4 at the far end. The host port must be configured as 2 × 100G.
Is your QDD-200G-2LR4 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 QDD-200G-2LR4 price in India and how do I order?
The Arista QDD-200G-2LR4 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 QDD-200G-2LR4 draw?
Arista lists maximum power of 8 W for the QDD-200G-2LR4. 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-200G-SR4200GBASE-SR4, 70 m OM3 / 100 m OM4QSFP-200G-FR4200GBASE-FR4, 2 km SMFOSFP-200G-2LR42 × 100GBASE-LR4, 10 km SMFQDD-8X25-MR-SR-E8 × 25GBASE-SR-E / 8 × 10GBASE-SR, 50 m OM4 @25G no FECOSFP-8X25-MR-LR8 × 25GBASE-LR / 8 × 10GBASE-LR, 2 km SMFQDD-8X25-MR-LR8 × 25GBASE-LR / 8 × 10GBASE-LR, 2 km SMFGovernment, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
Talk to Sales