| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | SFP-1G-SX | |
| 2 | Arista Networks | SFP-1G-SX | |
| 3 | Huawei | eSFP-GE-SX-MM850 | |
| 4 | Juniper | EX-SFP-1GE-SX | |
| 5 | Brocade | E1MG-SX-OM |
| Arista Compatible | SFP-1G-SX | Vendor Name | HYTOPTODEVICE |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 850nm | Max Distance | 550m over OM2 MMF |
| Connector | Duplex LC | Transmitter Type | 850nm VCSEL |
| Cable Type | MMF | Receiver Type | PIN |
| TX Power | -9.0~-3dBm | Receiver Sensitivity | < -18.0dBm |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | Operation Temperature | 0°C to 70°C (32 to 158°F) |
Full Compatibility List and Supported Devices of Fiber Optic Transceiver
One of the biggest advantages of third-party optical transceiver is their strong brand compatibility,which helps enterprises cut hardware costs without sacrificing performance.Our 1G SFP optical transceivers are fully tested and certified to work seamlessly with the Arista Networks equipments:
Arista 7010T Series: DCS-7010T-48, DCS-7010T-48-DC
Arista 7050X & 7050X3 Series: DCS-7050SX3-48YC12, DCS-7050TX3-48C8, DCS-7050QX-32S (ports set to native 1G rate)
Arista 7150S Series: DCS-7150S-24, DCS-7150S-52, DCS-7150S-64
Arista 720XP Series (Campus Edge): DCS-720XP-48Y6, DCS-720XP-24ZY4, DCS-720XP-48ZC2
Arista 7280R & 7280R3 Series: DCS-7280SR-48C6, DCS-7280QR-C36
Main Application Scenarios of Fiber Connection Module
Intra-Rack & Row Cross-Connects: Linking top-of-rack (ToR) and leaf switches directly to servers and storage controllers inside Arista-driven enterprise data centers.
Corporate Campus Local LANs: Bridging distribution layers to core switching matrixes across different rooms or floors within a single multi-story corporate building.
Storage Area Networks (SAN): Interconnecting high-speed network attached storage arrays (NAS) or storage fabric environments via local multi-mode patch links.
High-Speed Uplink Paths: Deploying multi-mode optical fiber trunk paths to aggregate traffic from access-layer switches back up to a centralized core engine.




Q1: What is the maximum distance supported by the Arista SFP-1G-SX compatible module?
A1: It supports up to 220m over legacy OM1 (62.5/125µm) fiber, up to 550m over standard OM2 (50/125µm) fiber, and up to 1km over optimized OM3/OM4 laser-optimized multi-mode fiber.
Q2: Do I need to use an optical attenuator with this short-range module?
A2: No, you do not need an attenuator. The output power is intentionally mapped for short distances and will not saturate or damage the receiver.
Q3: Can I use single-mode fiber (SMF) patch cords with an Arista SFP-1G-SX?
A3: No, this module will not work over single-mode fiber. The laser core size and wavelengths do not align, resulting in immediate link-down errors.
Q4: What wavelength does the Arista SFP-1G-SX operate on?
A4: It operates on a short-wave 850nm infrared light spectrum.
Q5: Can I use this transceiver with Single-Mode Fiber (SMF) patch cables?
A5: No, it is designed exclusively for Multi-Mode Fiber (MMF). Using single-mode fiber will cause massive light loss and the link will stay down.
Q6: Is the Arista SFP-1G-SX hot-swappable?
A6: Yes, it is fully hot-pluggable. You can insert or extract the module without taking down the host hardware switch.
Why Network Engineers Choose HYTOPTODEVICE
HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany
Quality Certification & Compliance
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our SFP modules and network solutions:
ISO 9001: Certified quality management and production consistency.
CE & FCC: Fully compliant for seamless Global Market Access.
RoHS: Committed to environmental responsibility and hazardous material control.
Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.







