Optical Link Module Manufacturer
COBTEL is an optical link module manufacturer in Dongguan, China. We build fiber optic transceivers from 1.25G to 800G in our own plant and ship them to wholesale buyers, ISPs, data centers and network integrators in more than 50 countries.
Buying from a direct optical link module manufacturer changes your cost structure. There is no agent and no trading company between us. You get factory prices, a 3-year warranty, full traceability on every serial number, and an engineer on the other end of the email within 24 hours.
COBTEL also builds the fiber around the module. DAC and AOC cables, fiber patch cords and MPO trunk systems come off adjacent lines in the same industrial park. One purchase order can cover the whole link, one shipment can pack it together, and one engineer team answers for the full channel budget. Mixed purchase orders ship as one carton with one invoice. That is the difference a full-line optical link module manufacturer makes for your purchasing team.
Request a Quote Email info@cobtel.comBehind this category page stands Cobtel Precision Electronics Co., Ltd., founded in 2006 and rated a National High-Tech Enterprise. The group runs 5 manufacturing centers, holds 265 registered patents and reinvests 5% of annual sales in R&D. The optical communication division focuses on pluggable transceivers, DAC/AOC cables, fiber patch cords and MPO systems for B2B buyers.
What Can We Do for You?
One question decides your supplier search: can this factory actually build what your network needs? Here is what our production lines do every day. Each answer comes with a number, because an optical link module manufacturer should prove claims with data, not adjectives.
Full speed ladder, one factory
1.25G SFP for enterprise and campus links- 10G SFP+ for access and aggregation
- 25G SFP28 for 5G front-haul and servers
- 40G QSFP+ and 100G QSFP28 for data center spines
- 400G QSFP-DD and 800G OSFP for AI and cloud cores
Optics for every link budget
- Single mode at 1310 nm and 1550 nm, reach from 10 km to 80 km
- Multimode at 850 nm over OM3/OM4, reach from 100 m to 550 m
- CWDM4 lane design inside our 100G LR4 for 10 km runs
- PAM4 signaling on 400G SR8 and 800G DR8 platforms
Compatibility handled for you
- EEPROM coded for Cisco, Huawei, H3C, Juniper, Arista, Dell, ZTE, Mellanox/NVIDIA, TP-Link, Ubiquiti and 200+ platforms
- Every batch plug-in tested on real switches before packing
- DDM/DOM reports temperature, voltage, bias current and Tx/Rx power on every model
Build quality you can audit
- Zinc-alloy die-cast housings with heat-sink fins
- Gold-plated contacts rated for thousands of insertion cycles
- 100% eye diagram, bit error and DDM calibration tests
- 24–48 hour burn-in aging at 60°C by product family
Who Buys From This Category
- ISPs and carriers: 10G LR and 25G LR optics for access and metro rings, on rolling quarterly volumes
- Data center operators: 40G QSFP+ and 100G QSFP28 for spine-leaf upgrades, 400G and 800G for AI clusters
- Enterprise IT teams: 1.25G SFP modules for campus backbones and surveillance rings up to 15 km
- Security integrators: NVR and camera links over OS2 fiber with live DDM monitoring
- System integrators: coded modules for mixed Cisco, H3C and Huawei estates under one SKU list
- Resellers and distributors: private-label stock with a 12-month price lock and regional protection
Retail brands, utilities and broadcast networks round out the customer list. Whatever your vertical, name the platform you run, and this optical link module manufacturer will show you the last project we shipped for it.
As an optical link module manufacturer with 20 years of precision manufacturing behind us, we also control the hard parts upstream: mold making, metal stamping, injection molding and SMT all happen in-house. That is why our yield stays high and our price stays low.
Optical Link Module Specifications, MOQ and Lead Time
B2B buyers need two numbers before anything else: how many pieces can I order, and when does it land? The table below lists the eleven product families we build in this category, with the MOQ and lead time we run today. Wholesale prices scale by quantity, and repeat orders keep the same unit price for 12 months.
| Product | Package | Rate | Wavelength | Fiber | Reach | Interface | MOQ | Lead Time |
|---|---|---|---|---|---|---|---|---|
| Single-Mode Fiber-Coupled SFP Transceiver | SFP | 1.25G | 1310 nm | SMF | 15 km | Duplex LC | 50 pcs | 3–7 days |
| Multimode SFP Module 550m, Duplex LC | SFP | 1.25G | 850 nm | MMF | 550 m | Duplex LC | 50 pcs | 3–7 days |
| 10G SFP+ Single-Mode Dual-Fiber, 10km | SFP+ | 10G | 1310 nm | SMF | 10 km | Duplex LC | 50 pcs | 3–7 days |
| 10G SFP+ Single-Mode 1550nm, 80km | SFP+ | 10G | 1550 nm | SMF | 80 km | Duplex LC | 20 pcs | 7–12 days |
| 10G SFP+ Multimode 850nm, 300m | SFP+ | 10G | 850 nm | MMF | 300 m | Duplex LC | 50 pcs | 3–7 days |
| 25G SFP28 LR, LC Connector | SFP28 | 25G | 1310 nm | SMF | 10 km | Duplex LC | 20 pcs | 7–12 days |
| 40G QSFP+ SR4 DCI, MPO | QSFP+ | 40G | 850 nm | MMF | 100/300 m | MPO/MTP | 20 pcs | 7–12 days |
| 100G QSFP28 SR4 | QSFP28 | 100G | 850 nm | MMF | 100 m | MPO-12 | 20 pcs | 7–12 days |
| 100G QSFP28 LR4 | QSFP28 | 100G | 1295–1309 nm | SMF | 10 km | Duplex LC | 20 pcs | 10–15 days |
| 400G QSFP-DD SR8, PAM4 | QSFP-DD | 400G | 850 nm | MMF | 100 m | MPO-16 | 10 pcs | 15–20 days |
| 800G OSFP DR8, PAM4 | OSFP | 800G | 850 nm | MMF* | 50 m | MPO-16 | 10 pcs | 15–25 days |
*Single-mode 800G DR8 builds on request. Sample orders from 2 pcs. OEM EEPROM coding or custom labels add 2–3 working days. Stock models ship from Dongguan by DHL, FedEx or UPS in 3–5 days door to door. Operating temperature: 0–70°C standard, −20–60°C industrial option.
Order Quantities, Price Tiers and Packaging
An optical link module manufacturer that hides its price tiers wastes your time. Here is how our wholesale pricing moves and how each order leaves the factory.
| Order Quantity | Price Level | Packaging | Payment |
|---|---|---|---|
| 2–49 pcs (samples) | List price, credited back from 200 pcs | Anti-static bag and tray | PayPal or T/T |
| 50–199 pcs | 5–12% off list | Tray and box, 10 pcs per box | T/T |
| 200–999 pcs | 12–20% off list | Export carton with per-lot test reports | T/T |
| 1,000+ pcs | 20–30% off list, 12-month price lock | OEM packaging to your design | T/T on framework contract |
Delivery Terms You Can Plan Around
Our order confirmation states the ship date, and we hold it. If we miss a confirmed stock-model date for reasons on our side, we credit 2% of the order value per delayed week. You receive the tracking number, the packing list and the per-lot test report on the day of dispatch. EXW and FOB Shenzhen both work, and DDP is quoted on request for EU and US destinations.
Need a spec that is not in the table? Our optical link module manufacturer engineers quote custom wavelengths, reaches and housing options within 24 hours. Send the part number you use today and we will match it, code it and test it against your switch list.
OEM and ODM Service from an Experienced Optical Link Module Manufacturer
COBTEL grew up as an OEM partner. Six or seven of the world's and China's top ten structured cabling brands buy directly from our lines, and Fortune 500 companies trust our design and manufacturing on joint projects. The same OEM/ODM discipline now runs through our optical module business.
OEM: your brand, our line
- Custom label, logo and serial number format
- EEPROM vendor coding and DDM threshold presets
- Housing color and pull-tab color by project
- Retail-ready or anti-static packaging design
- 12-month price lock on framework orders
ODM: built from your requirement
- Custom PCB layout and optical sub-assembly selection
- Firmware and protocol tuning for special platforms
- Housing and heat-sink tooling made in our own mold shop
- NDA signed before your drawings reach our engineers
- Regional exclusivity available for private-label partners
How an OEM Project Runs Here
- Day 0: You send the part number, coding brand and quantity. Our FAE confirms feasibility the same day.
- Day 1–3: You receive the quote and spec sheet. We sign the NDA before any drawing moves.
- Day 4–7: Samples are coded, tested on your platform list and air-shipped for approval.
- Week 2–4: Mass production runs the 100% test flow. Goods dispatch with per-lot reports and a named after-sales contact.
Four steps, one owner, no middleman. This is the workflow an optical link module manufacturer with in-house tooling can promise, because nothing waits on an outside supplier.
OEM/ODM Success Cases
12,000 coded SFP+ modules for a UK fiber ISP
A UK internet service provider needed 10G SFP+ LR modules coded for its mixed switch fleet from two vendors. We coded the EEPROM, printed their brand label, and delivered 12,000 pieces in 18 working days. The network has run 18 months with zero RMA on the batch.
3,200 private-label 100G QSFP28 SR4 for a US data center
A US colocation operator wanted one supplier for rack-level 100G optics under its own label. We produced 3,200 QSFP28 SR4 units with custom packaging, passed their switch-matrix audit on Arista 7280 platforms, and shipped in 14 days. They now order quarterly on a locked price.
800G OSFP program for a Brazil systems integrator
A Latin American integrator asked for a 50-piece 800G OSFP pilot for an AI cluster build. After validation on NVIDIA Spectrum-4 switches, the pilot grew into a rolling order of 6,000 pieces per year. Our engineers supported every firmware question within 24 hours.
Every case above started the same way: one email with a part number and a quantity. As an optical link module manufacturer that runs its own mold shop, stamping plant and SMT lines, we quote OEM projects in days, not weeks. Your designs stay yours. We sign NDAs as a standard step, restrict project files to a named engineer group, and honor regional exclusivity for private-label partners who grow with us.
Certifications Our Modules and Factory Carry
Certificates answer a simple buyer question: will this shipment clear customs, pass an audit and keep working in the field? Our wall reads like a procurement checklist.
Management systems
- ISO 9001:2015 quality management
- ISO 14001 environmental management
- IATF 16949 automotive-grade process control
- CNAS-accredited laboratory, Reg. No. L21456
Product compliance
- CE and FCC for EU and US markets
- RoHS and REACH environmental compliance
- UL file E508595, plus ETL, RCM and CSA marks
- IEC 60825 Class 1 laser safety
Standards conformity
- MSA compliant: SFF-8472, SFF-8636, QSFP-DD and OSFP specifications
- IEEE 802.3 Ethernet standards across the speed ladder
- MSA-compliant footprint guarantees hot-swap fit in mixed-brand racks
Test flow, every single unit
- Eye diagram and bit error rate < 1E-12
- DDM calibration against reference meters
- Real-switch compatibility test on your platform list
- 24–48 h burn-in at 60°C, then final QC by serial number
Paperwork is half the story. Sample units from every production lot also face thermal shock cycling between −40°C and 85°C, vibration per IEC 60068, 8 kV contact ESD discharge and 48-hour damp heat exposure. Pull tests on LC and MPO terminations clear the IEC 61754 requirement before a family is released. Failure data returns to the mold and SMT lines the same week, and the fix ships in the next lot. Reliability data sheets for each family are available before you order, on request. This loop holds our field return rate below 0.3% across more than 200,000 modules delivered.
An optical link module manufacturer is only as good as its lab. Ours is CNAS-accredited, which means an independent national body audits our test methods, equipment and records. You can request the test report for your lot, and we will send it with the shipment. Documents travel in the carton too: certificate of conformance, lot test report and compliance copies, one set per delivery.
Inside the COBTEL Optical Link Module Factory
Trust needs evidence. Here is the factory behind every module we ship, in numbers.
- Self-owned industrial park in Wanjiang, Dongguan, in operation since November 2021: 41,731 m² of floor area, no rent-driven relocation risk.
- 5 manufacturing centers: two in Guangdong, plus Hubei, Guizhou and a Vietnam base for flexible capacity.
- 600+ employees across 8 major centers, including a core team with 35 years of data center R&D and manufacturing experience.
- 10,000 pcs/day module capacity on 2 dedicated production lines, fed by an in-house MT ferrule output of 15,000 pcs/day.
- Class 100,000 cleanroom for optical assembly, polishing and coupling.
- 265 registered patents and 5% of annual sales reinvested in R&D at our Dongguan innovation center.
- National recognitions: National High-tech Enterprise (2016), National “Little Giant” Enterprise, Guangdong Connector Industry TOP 100.
- Reference customers: direct supplier to Schneider, Molex, TCL-Legrand and Belden; 6–7 of the world's and China's top ten structured cabling brands trade with us directly.
- Digital factory: MES, ERP, PLM, WMS and QMS systems on one data platform, with AI vision sorting and AGV logistics on the floor.
- Optical test lab: ENA vector network analyzers, insertion loss testers, 3D inspection machines, end-face inspectors and thermal shock chambers, all under our CNAS L21456 accreditation.
What These Numbers Mean for Your Order
- Fast answers: optical engineers sit next to the module line, so feasibility replies come in hours, not days.
- Stable pricing: we cast our own housings and finish our own ferrules, so cost swings hit us before they hit your quote.
- Rush capacity: two module lines run in parallel, and the Vietnam base absorbs overflow on long framework orders.
- One team for copper and fiber: the same factory fills your RJ45, keystone and patch panel requirements, so audits and freight consolidate.
- Low risk: the industrial park is self-owned, the lab is CNAS-accredited, and four global brands buy from these lines as references.
Few factories in this price range can show you a mold shop, a stamping floor, 82 injection machines, an SMT line and a cleanroom under one roof. That vertical depth is the real reason an optical link module manufacturer like COBTEL can hold quality and cut cost at the same time. We invite B2B buyers to audit the plant in person or by live video walk-through. Plan a visit around your next sourcing trip to Guangdong; the showroom, the cleanroom window and the test lab receive guests on two weeks' notice.
Frequently Asked Questions
What is the MOQ for optical modules at COBTEL?
Standard 1G and 10G models start at 50 pieces. 25G, 40G and 100G models start at 20 pieces, and 400G or 800G models start at 10 pieces. Sample orders from 2 pieces are accepted, and the sample cost is credited back on your first bulk order.
How fast can an optical link module manufacturer like COBTEL deliver?
Stock models ship in 3 to 7 working days. Orders with OEM coding or custom labels add 2 to 3 working days. Air freight by DHL, FedEx or UPS takes another 3 to 5 days to most destinations.
Are your modules compatible with Cisco, Huawei, Juniper and Arista switches?
Yes. We pre-code the EEPROM for Cisco, Huawei, H3C, Juniper, Arista, Dell, ZTE, TP-Link, Ubiquiti and more than 200 other platforms. Every batch is plug-in tested on real switches before packing, so the module shows full vendor identity and reports DDM data correctly.
Do you offer OEM and ODM service?
Yes. OEM covers custom labels, housing colors, EEPROM coding, DDM thresholds and packaging. ODM covers hardware design, firmware and housing tooling for new requirements. We sign NDAs and support long-term private-label programs with a 12-month price lock.
What certifications do your optical modules carry?
The factory is ISO 9001:2015, ISO 14001 and IATF 16949 certified. Modules carry CE, FCC, RoHS and REACH compliance, meet IEC 60825 Class 1 laser safety, and follow SFP, SFP28, QSFP28, QSFP-DD and OSFP MSA standards. Our CNAS-accredited laboratory (Reg. No. L21456) verifies every test report.
What warranty and RMA terms do you provide?
Every module carries a 3-year warranty. Our engineers reply to any RMA case within 24 hours with a test report. Confirmed defects are replaced free of charge and shipped with your next order or within 7 days.
How do you test each module before shipping?
Each unit passes a 100% test flow: eye diagram, bit error rate below 1E-12, DDM calibration, end-face inspection and a real-switch compatibility check. We then run 24 to 48 hours of burn-in aging at 60 degrees Celsius by product family. Nothing ships without a serial number and test record.
Which data rates and distances do you cover?
We cover 1.25G, 10G, 25G, 40G, 100G, 200G, 400G and 800G. Standard reach runs from 100 m over multimode to 80 km over single mode, and custom 120 km builds are available on request. If you need an uncommon wavelength or distance, our engineers will quote it within 24 hours.
What payment and shipping terms do you accept?
We accept T/T for bulk orders and PayPal for samples. Terms are EXW or FOB Shenzhen, and we ship worldwide by DHL, FedEx and UPS. Bank transfers must go to Cobtel Precision Electronics Co., Ltd. - please verify the beneficiary name before you pay.
Can I get free samples?
Sample orders start at 2 pieces and are charged at list price, which keeps our sample desk fast for serious projects. When your bulk order reaches 200 pieces, we credit the full sample cost back on that invoice. Established buyers receive free samples for every new model validation.
Request a Quote from Your Optical Link Module Manufacturer
Send us five details and your quotation comes back within 24 hours: product type or the part number you use today, target data rate and distance, switch brand for coding, quantity, and label or packaging needs. No minimum for samples, no obligation for quotes.
Email: info@cobtel.com — quotes within 24 hours- Tel: +86-769-8707 6568 · Fax: +86-769-8707 6565
- WhatsApp / Mobile: +86 138 2911 7062
- Factory: No.9 Chuangxin Road, Wanjiang, Dongguan, Guangdong, China
What Happens After You Write to Us
- Within 4 working hours: a sales engineer confirms receipt and asks for any missing detail.
- Within 24 hours: you receive unit pricing by quantity, MOQ, lead time and freight options.
- Within 3 days on request: a free link-budget review or a sample plan matched to your platform list.
COBTEL Precision Electronics Co., Ltd. · Optical Communication Division · Optical modules, DAC/AOC cables, fiber patch cords and MPO systems from one factory. Purchasing managers, project engineers and resellers all write to this inbox, and a named sales engineer answers - not an autoresponder. Please verify the beneficiary name before any bank transfer.
1. 4x106.25Gbps PAM4 Transmitter and PAM4 Receiver
2. 4-channel 850nm VCSEL Array
3. 4-channel PIN Photodetector Array
4. Power Consumption <8W
5. Hot-pluggable OSFP Form Factor, CMIS Compatible
6. Maximum Link Length: 60m over OM3 MMF, 100m over OM4 MMF with FEC
7. MPO12 APC Connector
8. Operating Case Temperature: 0°C ~ +70°C
a. Broadcom DSP + 4X CWL, 2X DR4 SiPh PIC, 2 DR4 TIAs,
b. 2 DR4 PDs
c. COB SiPh Platform
d. DR8 OM4 500m Pass-through FEC, Pre-FEC BER ~E-7, suitable for 100G PAM4 applications
e. MPO16 APC Interface (DR 500M, DR+ 2KM)
1. OSFP MSA and CMIS Compatible
2. 4x106.25Gbps (53.125GBd PAM4) Electrical Interface
3. 4x106.25Gbps (53.125GBd PAM4) Optical Interface
4. Power Consumption <10W
5. Maximum Link Length: 500m over G.652 SMF with KP-FEC
6. MPO-12 Connector
7. Built-in Digital Diagnostic Monitoring (DDM)
8. Operating Case Temperature: 0°C ~ +70°C
9. 3.3V Operating Voltage
10. RoHS Compliant (Lead-Free)
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8. Global Wholesale for Every Fibre Optic SFP Module
We're well-known as one of the leading optical modules manufacturers and suppliers in China. If you're going to wholesale bulk high quality optical modules with competitive price, welcome to get pricelist and quotation from our factory.