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What payment methods do you accept?

We accept the following payment methods:Credit/Debit Cards: Visa, MasterCard, American ExpressPayPal: Secure online paymentWire Transfer: Bank transfer for bulk/wholesale ordersWestern Union: Available for international customersAll payments are processed securely. Your information is encrypted.

What is your shipping policy?

We offer worldwide shipping:Express (DHL/FedEx/UPS): 3-7 business daysAir Mail (China Post): 15-25 business daysSea Freight: Available for bulk wholesale ordersOrders processed within 1-2 business days after payment. Free shipping available for qualifying orders.

Do you offer OEM/ODM services for fiber optic products?

Yes, we offer OEM and ODM services:OEM: Custom branding with your logo and packaging on existing productsODM: Custom product design based on your specificationsCustomization: Custom cable lengths, connector types, and packagingMOQ varies by product (typically 50-100 units). Contact our sales team for a quote.

What is the difference between GPON and EPON?

GPON offers higher downstream bandwidth and better QoS. EPON provides symmetric bandwidth at lower cost. GPON supports split ratios up to 1:128 for wider coverage.

Which ONU/ONT is compatible with my OLT?

Our L880G and L801 series ONUs support XPON dual-mode and work with Huawei, ZTE, FiberHome and other major OLT brands. Contact support to confirm compatibility.

What is the difference between SC/APC and SC/UPC connectors?

SC/APC (Angled Physical Contact) and SC/UPC (Ultra Physical Contact) are two common fiber optic connector polish types. The key difference is the end-face angle.SC/UPC: Flat end-face with slight curve, return loss ≥50dB. Used for general-purpose data transmission. Blue color.SC/APC: 8° angled end-face, return loss ≥60dB. Used for RF video transmission (CATV) and PON networks. Green color.They are NOT interchangeable — mixing them can damage the connector end-face.

How do I choose the right fiber optic splitter for my network?

Choosing the right fiber optic splitter depends on several factors:Type: PLC splitters offer better performance for FTTx; FBT splitters suit smaller setupsRatio: Common ratios: 1×2, 1×4, 1×8, 1×16, 1×32, 1×64Package: ABS box (indoor), Mini steel tube (tight spaces), LGX cassette (rack mount)Connector: SC/APC for CATV, SC/UPC for dataFor GPON/EPON FTTH deployments, a 1×8 or 1×16 PLC splitter with SC/APC connectors is recommended.

What is the maximum distance for fiber optic transmission?

Fiber optic transmission distance depends on fiber type and equipment:Single-mode fiber (OS2): Up to 40km+ without amplificationMulti-mode fiber (OM1-OM5): 300m to 550m at 10GbpsGPON: Typically 20km reachEPON: Typically 20kmXGS-PON: Up to 40km1550nm wavelength has lower attenuation (≈0.2dB/km) vs 1310nm (≈0.35dB/km). For standard GPON FTTH, 20km is typical from OLT to ONU.

How do I configure an ONU/ONT for my fiber network?

Configuring an ONU/ONT involves these steps:Connect: Plug fiber cable into PON port, Ethernet to your router/PCPower on: Wait for PON LED to turn solid (optical signal received)Access web: Set PC to same subnet (192.168.1.x), open ONU IP (usually 192.168.1.1)Configure WAN: Set connection type (PPPoE, DHCP, or Static IP) per ISP requirementsRegister: Some ISPs require registration via serial number, LOID password, or MAC address

What is XGS-PON and how is it different from GPON?

XGS-PON (10 Gigabit Symmetric PON) is the next-generation PON technology offering 10Gbps symmetric bandwidth. Key differences from GPON:Speed: GPON = 2.5Gbps down / 1.25Gbps up. XGS-PON = 10Gbps both directionsWavelength: XGS-PON uses 1577nm down / 1270nm up (different from GPON's 1490nm/1310nm)Coexistence: XGS-PON can share the same fiber with GPON via WDMXGS-PON ONUs work with dual-mode OLTs but need an XGS-PON port for 10G speeds. Ideal for 4K/8K streaming, cloud computing, and enterprise use.

How Many Homes Can One OLT Port Serve?

In GPON networks, one OLT port typically serves 32 to 128 homes, depending on the split ratio. A 1:32 splitter is most common for FTTH deployments. With XGS-PON, one port can serve 256+ subscribers. Actual capacity depends on bandwidth per user — if each user needs 100Mbps, a GPON port (2.5Gbps down) handles ~25 users at peak. For our 2-port EPON OLT (L202), each port supports up to 64 ONUs, giving a total of 128 homes per device.

How Is GPON Data Secured on Fiber Optic Networks?

GPON uses AES-128 encryption to secure downstream data. Each ONU receives only its own data — the OLT encrypts traffic with a unique key per ONU. Upstream data is inherently secure because each ONU transmits in its assigned time slot. AES encryption is enabled by default in most OLTs like our EPON/GPON models. For additional security, MAC address filtering and ONU authentication are supported.

Is Fiber Optic Cheaper Than Copper in the Long Run?

Yes. While fiber optic cabling costs 20-30% more upfront, its total cost of ownership (TCO) over 10 years is 40-60% lower than copper. Fiber supports 40Gbps+ bandwidth vs copper's 10Gbps limit, has 25+ year lifespan (copper: 5-10 years), and needs no signal repeaters for up to 40km. For ISPs, the breakeven point is typically 2-3 years. Our single-mode fiber patch cables and splitters provide reliable long-term infrastructure.

Best SFP Modules 2026: Top Picks for 1G, 10G & 25G Networks

Why the right SFP module matters in 2026

As fiber optic networks continue to scale toward higher bandwidth demands, selecting the correct Small Form-Factor Pluggable (SFP) module has never been more critical. In 2026, enterprises, data centers, and service providers are juggling legacy 1G infrastructure alongside mainstream 10G deployments and the rapid adoption of 25G uplinks. The right SFP transceiver ensures optimal signal integrity, maximum reach, and seamless interoperability—while the wrong choice can lead to costly downtime or performance bottlenecks. This guide breaks down the best SFP modules for 1G, 10G, and 25G networks, helping you make an informed purchasing decision for your next network upgrade.

1. Best 1G SFP Modules for Reliable Legacy Connectivity

Despite the push toward faster speeds, 1G SFP modules remain the backbone of access networks, campus LANs, and industrial installations. In 2026, these transceivers offer mature technology with exceptional price-to-performance ratios.

Key Features to Look For in 1G SFP Transceivers

Compatibility: Ensure MSA compliance and vendor-specific coding (Cisco, Juniper, Arista) for plug-and-play operation.
Reach: Choose between 550m (MMF, 850nm), 10km (SMF, 1310nm), or 80-120km (SMF, 1550nm) variants based on your link budget.
DOM Support: Digital Optical Monitoring provides real-time diagnostics—essential for proactive network management.

Top 1G SFP Picks for 2026

FiberOpticStore 1G SFP (850nm / 550m): Best for short-reach multimode fiber runs. Low power consumption (under 1W) and broad vendor compatibility.
ProLabs 1G SFP (1310nm / 10km): Industry-leading temperature range (-40°C to 85°C) ideal for outdoor or industrial environments.
FS.com 1G SFP (1550nm / 80km): Cost-effective long-haul solution with ER optics, featuring advanced APD receiver sensitivity.

For businesses that still run legacy switches or need to connect remote offices, investing in quality 1G SFP modules ensures stable connectivity at the lowest total cost of ownership.

2. Top 10G SFP+ Modules Dominating Data Center and Enterprise Networks

10G SFP+ transceivers remain the workhorse for server-to-switch links, storage area networks (SAN), and enterprise aggregation layers. In 2026, these modules benefit from tighter optics integration and enhanced thermal management.

What to Evaluate in a 10G SFP+ Module

Form Factor: SFP+ dimensions must match your switch port density—many modules now feature a slim latch design for high-density panels.
Wavelength Options: SR (850nm, 300m OM3/OM4), LR (1310nm, 10km), ER (1550nm, 40km), and ZR (1550nm, 80km).
Power Budget: Check minimum TX power and RX sensitivity to guarantee link closure over your chosen fiber plant.

Best 10G SFP+ Modules for 2026

FS.com 10G SFP+ SR: Excellent price point with reliable performance up to 300m over OM4 multimode. Supports enhanced DOM data.
Flexoptix 10G SFP+ LR: Fully software-configurable to mimic major OEM vendors—ideal for mixed-brand environments.
Cisco SFP-10G-LR-S: First-party module with guaranteed interoperability for Cisco Catalyst and Nexus switches, though at a premium cost.
Intel FTLX8571D3BCV: Industry-standard SFP+ for Intel NICs and switches, known for low latency and rock-solid stability.

When deploying 10G SFP+ modules, always verify the cable type (OM3/OM4 for SR; OS2 for LR/ER) and avoid exceeding maximum distance specifications to prevent signal degradation.

3. Best 25G SFP28 Modules for Next-Generation Speed

25G SFP28 transceivers are increasingly the go-to choice for data center ToR (Top-of-Rack) switches, high-performance computing clusters, and 5G xHaul transport. They offer 2.5x the bandwidth of 10G while maintaining the same physical footprint and similar per-port cost.

Critical Considerations for 25G SFP28 Deployment

Backward Compatibility: Many SFP28 modules can auto-negotiate down to 10G, easing migration from existing 10G infrastructure.
FEC (Forward Error Correction): Required for 25G NRZ signaling over moderate distances—ensure your switch supports RS-FEC.
Reach Limitations: Typical 25G SR is limited to 100m over OM4; LR supports 10km single-mode.

Top 25G SFP28 Modules for 2026

FS.com 25G SFP28 SR: High-performance 850nm module with 100m reach over OM4, ideal for intra-data-center links.
ProLabs 25G SFP28 LR: Exceptional 10km single-mode reach with 1310nm DFB laser. Fully coded for major OEMs.
Juniper JNP-SFP-25G-SR: Native Juniper transceiver with full lifecycle support and guaranteed performance on QFX/EX series switches.
Mellanox MCP1660-L00x (with SFP28 transceivers): Best paired with Mellanox ConnectX-5 adapters for lowest latency HPC applications.

For organizations planning a 25G migration, start with a small pilot using a mix of SR (short reach) and LR (10km) modules to validate your cabling plant and power budget before scaling.

Practical Tips for Buying SFP Modules in 2026

Whether you are purchasing 1G, 10G, or 25G SFP modules, following these best practices will save money and avoid network issues:

Always verify vendor lock-in: Some OEM switches require coded transceivers. Consider third-party suppliers that offer free programming to match your switch model.
Check power consumption: Newer modules often use less than 1.5W (SFP+ SR) or 2.5W (SFP28 SR)—lower heat reduces cooling costs in data centers.
Test before bulk deployment: Order a single unit first to confirm compatibility and link stability with your existing optical budget.
Buy from reputable suppliers: Look for distributors offering at least 1-year warranty, 30-day return policy, and certified RoHS compliance.
Plan for future speed upgrades: Consider purchasing SFP+ modules that are dual-rate (10G/1G) to allow gradual migration, or SFP28 modules that support 10G fallback.

Conclusion: Future-Proof Your Fiber Network with the Right SFP Modules

In 2026, the choice of SFP transceiver directly impacts your network's reliability, scalability, and operational costs. For legacy 1G links, focus on proven 1G SFP modules with DOM and wide temperature support. When deploying or upgrading to 10G, prioritize SFP+ modules that balance cost, reach, and vendor compatibility. For the forward-looking enterprise, 25G SFP28 transceivers deliver the bandwidth needed for modern workloads while maintaining a small physical footprint. Whether you are building a new fiber optic backbone or refreshing existing infrastructure, investing in high-quality SFP modules from trusted suppliers ensures your network remains performant, resilient, and ready for whatever 2026—and beyond—brings. For more detailed specifications, compatibility matrices, and pricing, visit our fiber optic e-commerce store's SFP module collection.