Solving your optical & networking challenges.

From data-center interconnect to industrial automation, we match the right transceivers and switches to your application — then support you from sample to deployment. Factory-direct, certified for global roll-out.

100G QSFP28 1.25G – 100G 100G QSFP28 LR4 optical transceiver module
Light in motion

Your data travels as light

Optical transceivers turn electrical signals into pulses of light that stream through fiber — multiple wavelengths multiplexed onto a single strand, from 1.25G to 100G and beyond.

● 850 nm · Multimode ● 1310 nm ● 1550 nm ● CWDM ● DWDM
12,000㎡
Production area
1.2M+
Optical modules / year
100+
R&D personnel
ISO/TUV/UL
Certified
Solutions by application

We solve the networking problem, not just sell a part

Tell us what you're building. We match the right products to your scenario and support you end-to-end.

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Data Center Interconnect

High-density 25G/40G/100G links without vendor lock-in.

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Telecom & Metro Networks

CWDM/DWDM and single-fiber optics that squeeze more out of existing fiber.

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Industrial Automation & IoT

Rugged -40~75°C switches and converters for harsh environments.

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Enterprise & Campus

Cost-effective 1G/10G access and PoE for offices and campuses.

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What we build

One-stop industrial internet products

From 1.25G to 100G optical interconnect, plus rugged switching and media conversion — everything you need for telecom, data-center and industrial networks.

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Optical Transceivers

MSA-compliant modules engineered for high-density interconnect.

  • 1.25G ~ 100G: SFP / SFP+ / SFP28 / QSFP+ / QSFP28
  • SR / LR / ER / ZR, CWDM & DWDM
  • Compatible with Cisco, Juniper, HPE, Huawei, Arista & more
Browse transceivers →
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Industrial Ethernet Switches

Layer 2 / Layer 3 managed switches for harsh environments.

  • PoE / PoE+ / PoE++, rail & rack-mount
  • VLAN, LACP, STP/RSTP/MSTP, QoS
  • Wide-temp -40~75°C, EN50155 options
Browse switches →
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Fiber Media Converters

Reliable copper-to-fiber conversion, telecom & industrial grade.

  • 100M / Gigabit, single & dual fiber
  • SC / LC, 20km reach
  • Desktop & DIN-rail form factors
Browse converters →
Featured products

Transceivers from 1.25G to 100G

100G QSFP28 LR4 transceiver
100G QSFP28
LR4 · 10km
100G QSFP28 SR4 transceiver
100G QSFP28 SR4
SR4 · 100m
40G QSFP+ LR4 transceiver
40G QSFP+
LR4 · 10km
25G SFP28 LR transceiver
25G SFP28
LR · 10km
10G SFP+ LR transceiver
10G SFP+
LR · 10km
10G SFP+ BiDi transceiver
10G SFP+ BiDi
Single-fiber · 10km
Why ZTRS

Built for reliability, at scale

Full-process R&D

Structural, optical, RF and thermal simulation plus performance verification — every product is engineered and validated before production.

Automated manufacturing

High-precision fully-automatic optoelectronic lines with self-developed optical-coupling and test platforms, COB die-attach at 0.5μm precision.

Intelligent quality control

MES, SPC and PLM systems with full digital traceability and a real-time quality early-warning platform.

Global certifications

ISO 9001 · ISO 14001 · ISO 45001 · Germany TUV · North American UL · EMC · RoHS.

Customization

Industrial-grade, rail-type, rack-mount, EN50155 railway-grade and intrinsically-safe variants to match your application.

Factory-direct pricing

As a manufacturer, we offer cost-effective solutions for OEM/ODM and volume deployment.

How we work

From requirement to deployment

01 · You describe the need

A part number, an application, or a problem to solve.

02 · We engineer the match

The right transceiver/switch, coded for your platform.

03 · Sample & verify

Pre-shipment test; sample for your own validation.

04 · Deploy at scale

Factory-direct production with guaranteed delivery.

Tell us your requirement, we'll engineer the solution.

Send us your part number or application requirements — our team will respond with a matched product and quotation. No obligation, no minimum.

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