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Arista SFP-1G-SX 1000BASE-SX SFP 850nm 550 m MMF
1 Gbps 1000BASE-SX SFP transceiver, 850 nm, up to 550 m MMF, 0 to 70 °C case temperature.
- Manufacturer
- Arista Networks, Inc.
- Mfr part number
- SFP-1G-SX
- Series
- 1G SFP
- Category
- Fiber optic transceiver modules
- Datasheet
- SFP-1G-SX datasheet (PDF)
SFP-1G-SX specifications
| Attribute | Value |
|---|---|
| Part Number | SFP-1G-SX |
| Manufacturer | Arista Networks, Inc. |
| Brand | Arista Networks |
| Standard | 1000BASE-SX |
| Form Factor | SFP, hot-swappable |
| Data Rate | 1 Gbps |
| Wavelength | 850 nm |
| Media | Multimode (OM1/OM2/OM3) |
| Max Distance | 550 m MMF |
| Connector | Duplex LC |
| Tx Power | −9.5 to −4.0 dBm |
| Rx Power | −17 to 0 dBm |
| Max Power | 1 W |
| Case Temp | 0 °C to 70 °C |
| Dimensions | 8.55 × 13.7 × 56.5 mm |
| Reach detail | 220 m on 62.5 µm (160 MHz·km), 275 m on 62.5 µm (200 MHz·km), 500 m on 50 µm (400 MHz·km) and 550 m on 50 µm (500 MHz·km) multimode fiber |
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 SFP-1G-SX
The Arista SFP-1G-SX is a hot-swappable SFP 1000BASE-SX optical transceiver for 1 Gbps Ethernet over multimode (OM1/OM2/OM3), with a Duplex LC interface and reach of up to 550 m MMF. It is the standard choice for short Gigabit fibre runs inside a building, a rack row or a campus closet. Typical uses: campus access and distribution uplinks, inter-building fibre, CCTV and industrial aggregation, and legacy Gigabit links.
- 1 Gbps 1000BASE-SX up to 550 m MMF
- Short-reach Gigabit over existing multimode
- Hot-swappable SFP, IEEE 1000BASE-SX
- Duplex LC connector · Multimode (OM1/OM2/OM3)
- Genuine Arista optic · GST invoice · pan-India dispatch
SFP-1G-SX: frequently asked questions
What is the Arista SFP-1G-SX?
The Arista SFP-1G-SX is a SFP 1000BASE-SX module from Arista Networks for 1 Gbps links. It plugs into a SFP port on an Arista switch and is used for campus access and distribution uplinks, inter-building fibre, CCTV and industrial aggregation, and legacy Gigabit links.
What is the maximum distance of the SFP-1G-SX?
Arista specifies the SFP-1G-SX for 220 m on 62.5 µm (160 MHz·km), 275 m on 62.5 µm (200 MHz·km), 500 m on 50 µm (400 MHz·km) and 550 m on 50 µm (500 MHz·km) multimode fiber.
What are the transmit and receive power levels of the SFP-1G-SX?
Per Arista's published optics data sheet, the SFP-1G-SX transmits −9.5 to −4.0 dBm and receives −17 to 0 dBm.
Which fiber and connector does the SFP-1G-SX need?
The SFP-1G-SX uses a Duplex LC connector on multimode (OM1/OM2/OM3), at 850 nm. Both ends of the link must use the same optical standard.
Is the SFP-1G-SX compatible with my Arista switch?
It works in Arista switches with SFP 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.
SFP-1G-SX vs SFP-10G-RA-1G-SX: which one do I need?
Use SFP-1G-SX in a normal 1G SFP port. SFP-10G-RA-1G-SX is a rate-adapting module: it sits in a 10G SFP+ port but talks 1000BASE-SX on the fibre, so you can connect a 10G-only switch port to a legacy 1G SX link.
Is your SFP-1G-SX 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 SFP-1G-SX price in India and how do I order?
The Arista SFP-1G-SX 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 SFP-1G-SX draw?
Arista lists maximum power of 1 W for the SFP-1G-SX. 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
SFP-10G-RA-1G-SX1000BASE-SX, 550 m MMFSFP-1G-LX1000BASE-LX, 10 km SMFSFP-1G-T100/1000BASE-T, 100 m copperSFP-100M-FX100BASE-FX, 2 km MMFSFP-10G-RA-1G-LX1000BASE-LX, 10 km SMFGovernment, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
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