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Arista QDD-8X25-MR-SR-E 8 × 25GBASE-SR-E / 8 × 10GBASE-SR QSFP-DD 850nm
8 × 25G / 8 × 10G 8 × 25GBASE-SR-E / 8 × 10GBASE-SR QSFP-DD transceiver, 850 nm, up to 50 m OM4 @25G no FEC, 0 to 70 °C case temperature.
- Manufacturer
- Arista Networks, Inc.
- Mfr part number
- QDD-8X25-MR-SR-E
- Series
- 200G QSFP-DD
- Category
- Fiber optic transceiver modules
- Datasheet
- QDD-8X25-MR-SR-E datasheet (PDF)
QDD-8X25-MR-SR-E specifications
| Attribute | Value |
|---|---|
| Part Number | QDD-8X25-MR-SR-E |
| Manufacturer | Arista Networks, Inc. |
| Brand | Arista Networks |
| Standard | 8 × 25GBASE-SR-E / 8 × 10GBASE-SR |
| Form Factor | QSFP-DD, hot-swappable |
| Data Rate | 8 × 25G / 8 × 10G |
| Wavelength | 850 nm |
| Media | Parallel multimode (OM3/OM4) |
| Max Distance | 50 m OM4 @25G no FEC |
| Connector | MPO-16 APC |
| Tx Power | −4.5 to 2.4 dBm @25G |
| Rx Power | −5.9 to 2.4 dBm @25G (no FEC) |
| Breakout | 8 × 25G or 8 × 10G |
| Case Temp | 0 °C to 70 °C |
| Dimensions | 13.5 × 18.4 × 78.3–93.3 mm |
| Reach detail | At 25G: 30 m OM3 / 50 m OM4 without FEC (low latency) or 70 m / 100 m with FEC. At 10G: 300 m OM3 / 400 m OM4 |
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-8X25-MR-SR-E
The Arista QDD-8X25-MR-SR-E is a hot-swappable QSFP-DD 8 × 25GBASE-SR-E / 8 × 10GBASE-SR optical transceiver for 8 × 25G / 8 × 10G Ethernet over parallel multimode (OM3/OM4), with a MPO-16 APC interface and reach of up to 50 m OM4 @25G no FEC. It also supports breakout to 8 × 25G or 8 × 10G. Typical uses: 200G fabrics, dual-100G aggregation and high-density 25G/10G fan-out.
- 8 × 25G / 8 × 10G 8 × 25GBASE-SR-E / 8 × 10GBASE-SR up to 50 m OM4 @25G no FEC
- 8 × 25G-SR-E low-latency or 8 × 10G-SR
- Single MPO-16 APC trunk
- MPO-16 APC connector · Parallel multimode (OM3/OM4)
- Genuine Arista optic · GST invoice · pan-India dispatch
QDD-8X25-MR-SR-E: frequently asked questions
What is the Arista QDD-8X25-MR-SR-E?
The Arista QDD-8X25-MR-SR-E is a QSFP-DD 8 × 25GBASE-SR-E / 8 × 10GBASE-SR module from Arista Networks for 8 × 25G / 8 × 10G 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-8X25-MR-SR-E?
Arista specifies the QDD-8X25-MR-SR-E for At 25G: 30 m OM3 / 50 m OM4 without FEC (low latency) or 70 m / 100 m with FEC. At 10G: 300 m OM3 / 400 m OM4.
What are the transmit and receive power levels of the QDD-8X25-MR-SR-E?
Per Arista's published optics data sheet, the QDD-8X25-MR-SR-E transmits −4.5 to 2.4 dBm @25G and receives −5.9 to 2.4 dBm @25G (no FEC).
Which fiber and connector does the QDD-8X25-MR-SR-E need?
The QDD-8X25-MR-SR-E uses a MPO-16 APC connector on parallel multimode (OM3/OM4), at 850 nm. APC connectors have an angled (green) end-face, so use APC patch cords and trunks. Both ends of the link must use the same optical standard.
Is the QDD-8X25-MR-SR-E 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.
What is an 8 × 25G optic used for?
It turns one high-density OSFP / QSFP-DD port into eight 25G (or 10G) links over a single MPO-16 trunk, which is handy for connecting many 25G/10G servers or legacy switches from a 400G-class platform.
Does the QDD-8X25-MR-SR-E support breakout?
Yes. Arista lists breakout to 8 × 25G or 8 × 10G. Use the matching optics at the far end and a suitable breakout cable or patch panel.
Is your QDD-8X25-MR-SR-E 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-8X25-MR-SR-E price in India and how do I order?
The Arista QDD-8X25-MR-SR-E 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.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Arista family datasheet
Related Arista parts
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