Optical Transceivers Guide
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Optical Transceivers — SFP, SFP+, QSFP28, QSFP56, QSFP-DD & OSFP for 1G to 800G Networks
Optical transceivers are the interface between your network switch or server and the fiber or copper cable connecting your infrastructure. At Resilient Tec, every transceiver is EEPROM-coded to match the OEM firmware signature of your switch — meaning your Cisco, Mellanox, Arista, or Juniper device sees it as a native module, with no errors, no suppression of third-party warnings, and no CLI overrides needed.
We stock transceivers from 1G SFP through 800G OSFP — short-range, long-range, CWDM, DWDM, BiDi, and breakout variants — compatible with all major enterprise, data center, and telecom platforms.
Transceiver Form Factors & Speed Guide
| Form Factor | Speed | Typical Reach | Common Platforms |
|---|---|---|---|
| SFP | 1G | Up to 80km (SMF) | Cisco Catalyst, Juniper EX, access switches |
| SFP+ | 10G | Up to 80km (SMF); 300M (MMF) | Cisco Nexus, Arista 7050, Mellanox SN2000 |
| SFP28 | 25G | Up to 10km (SMF); 100M (MMF) | Mellanox SN2700, Cisco Nexus 9300, Dell S5248 |
| QSFP+ | 40G | Up to 40km (SMF); 150M (MMF) | Cisco Nexus 9000, Arista 7280, Juniper QFX |
| QSFP28 | 100G | Up to 40km (SMF); 100M (MMF) | Mellanox SN3800, Cisco NCS, Arista 7500 |
| QSFP56 | 200G | Up to 2km (SMF); 100M (MMF) | Mellanox SN4600, NVIDIA Quantum series |
| QSFP-DD / OSFP | 400G–800G | Up to 2km (SMF) | Mellanox SN5600, NVIDIA Quantum-2, AI systems |
Will This Transceiver Work With My Switch?
Every transceiver in this collection has been compatibility-tested and EEPROM-programmed for specific platforms. Compatible switches and routers include:
- Mellanox / NVIDIA — Spectrum-1/2/3, Quantum, SN2000/3000/4000/5000 series
- Cisco — Nexus 9000/7000/5000, Catalyst 9000/6500, ASR, NCS, UCS
- Arista — 7050, 7060, 7280, 7500, 7800 series
- Juniper — QFX5100, QFX5200, QFX10000, MX, PTX series
- Dell — S-Series, Z-Series PowerSwitch
- HP / HPE — FlexFabric, ProCurve, Comware series
- Brocade / Extreme — ICX, VDX, SLX, X series
- Allied Telesis, Ciena, Fortinet, F5 — contact us to confirm
Not sure which transceiver fits your exact switch model and port type? Contact us before you buy — we'll confirm compatibility for free.
Why Choose Compatible Transceivers Over OEM?
- Cost: Compatible transceivers typically cost 60–90% less than OEM modules with identical performance
- Same optical specs: Built to MSA and IEEE standards — same wavelength, same reach, same power draw
- No CLI overrides needed: Our EEPROM coding means your switch recognizes the module natively
- Lifetime warranty: We stand behind every module — if it fails, we replace it
- In stock, ships fast: We maintain deep inventory of the most requested SKUs
The Resilient Tec Guarantee
- ✅ Pre-programmed EEPROM — recognized immediately, no third-party errors or suppression
- ✅ Compatibility-tested in our lab before every shipment
- ✅ Lifetime warranty on all transceivers
- ✅ Talk to a real engineer — not a chatbot
We don't just ship transceivers. We make sure they work in your environment.