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ISO 9001 Certified · Direct Factory Since 2006
Precision Cable Assemblies & Wire Harness, Engineered for the World
From high-speed data cables (SFP+/QSFP/QSFP-DD) to custom automotive and industrial wire harnesses — one direct-source factory covering R&D, tooling, prototyping and mass production.
ISO 9001
UL / RoHS
HDMI Association
MFi / SATA
National High-Tech
Data Center · Cloud · AI Computing
High-Speed Interconnects, Built for the Data-Driven World
SFP+/QSFP/QSFP-DD DAC and active cables, PCIe Gen5 (MCIO/OCuLink), Mini SAS HD — 100G–400G assemblies engineered with tight impedance control for switches, servers and storage.
USB4 40G
HDMI 2.1 8K
PCIe Gen5
100G–400G
ISO 9001 · 100% Electrical Tested
Quality You Can Verify, From Prototype to Mass Production
In-house testing center with 20+ instruments — continuity, hi-pot, insertion force, swing, salt spray and temperature-humidity aging. Every cable is validated before it ships.
ISO 9001
UL / RoHS
100% Tested
A-Level Digital
100 Gbps+
High-Speed Data Cables
SFP+, QSFP, QSFP-DD, Mini SAS HD — engineered for data centers, servers and cloud computing.
20
Established
400+
Skilled Employees
8700+ m²
Manufacturing Area
100%
Electrical Tested
Our Products
Full Range of Cable & Wire Harness Solutions
Built on two pillars — cable assemblies & wire harness — covering 8 product families, all customizable to your drawings and samples.
Cable AssembliesHigh-Speed · USB · HDMI · Network · Fiber · Power
→
Wire HarnessAutomotive · Rail · Industrial · Sensor · New Energy
→
Data Center
High-Speed Cable Assembly
SFP+/QSFP/QSFP-DD, Mini SAS HD, PCIe Gen5 (MCIO/OCuLink) passive & active assemblies for servers, switches and cloud storage.
Up to 100G+SAS/SATAPCIe Gen5
Consumer Electronics
USB & Type-C Cables
USB 2.0/3.0/3.2, USB4 & Thunderbolt, full-featured Type-C, Lightning (MFi) — 90Ω impedance, PD fast charging up to 240W.
USB4 40GType-C PDMFi
AV & Display
HDMI / DVI Cables
HDMI 2.0/2.1 (4K/8K), gold-plated connectors, 100Ω impedance, long-run up to 45 m for TVs, projectors and professional displays.
4K/8KHDMI 2.145m max
Networking
Network & LAN Cables
Cat5e/Cat6/Cat6a/Cat8, shielded S/FTP twisted pair, RJ45 & KVM assemblies for structured cabling and industrial Ethernet.
Cat5e–8S/FTPRJ45
Automotive & Rail
Automotive / Rail Harness
Vehicle OBD, in-vehicle WiFi, e-scooter controller harnesses, railway sensor cables — CAN/LIN bus, vibration & high-temperature rated.
CAN/LIN-40~125℃OEM
Industrial
Sensor & Industrial Cables
IP67 waterproof, M8/M12 circular connectors, high-temperature & UV-resistant, drag-chain flexible cables for robots, servo and PLC.
IP67/IP68M8/M12Flex-rated
Power
Power Cables
AC power cords, SATA power & signal, high-voltage harness with HVIL interlock for new-energy vehicles, battery and charging systems.
AC/SATAHVILHigh-current
Optical
Fiber Optic Patch Cords
LC/SC/FC/ST single-mode & multimode jumpers, polished ceramic ferrules, hybrid optical-electrical assemblies for long-distance links.
SM/MMLC/SC/FCCustom
Industries We Serve
Proven Connectivity for 9 Key Industries
Our cable assemblies and harnesses are trusted by OEMs, distributors and system integrators across the globe.
Communication
5G, base stations, routers and broadband equipment.
Security & Surveillance
HD video transmission and monitoring system cables.
Consumer Electronics
Smartphones, PCs, TVs, wearables and 3C accessories.
Aerospace & Defense
High-reliability, lightweight interconnect systems.
Automotive & Navigation
OBD, vehicle WiFi, sensors, ADAS and infotainment.
Rail Transit
Railway sensor and control cables, high-reliability.
New Energy
EV charging, energy storage and photovoltaic systems.
Industrial Control
Robotics, servo motors, PLC cabinets and automation lines.
Medical
Monitoring, diagnostic and surgical device interconnects.
Why Choose Us
A True Direct-Source Manufacturing Partner
One factory for R&D, tooling, production and testing — no middlemen, no outsourcing delays.
01
Integrated Supply Chain
Everything under one roof — cable cutting, soldering, molding, testing and packaging in our own factory with a dedicated project manager per order.
02
Certified Quality System
ISO 9001 certified since 2019, National High-Tech Enterprise and Gazelle Enterprise, with UL, RoHS, HDMI, SATA and MFi compliance.
03
Automated Production Lines
10 automatic soldering machines, 50 injection molding machines, 20+ electrical testers and 10 visual-inspection stations for stable mass output.
04
OEM / ODM & Fast Samples
Customize from drawings or samples. Prototype cables in 48–72 hours; production orders in 2–4 weeks depending on complexity.
05
100% Electrical Testing
Every cable is continuity, hi-pot and insulation-resistance tested before shipping — plus pull force and environmental testing on request.
06
Responsive Global Support
English-speaking sales engineers reply within hours, with on-time delivery and global logistics to 40+ countries.
How We Work
4 Simple Steps to Your Custom Cables
From your drawing to your warehouse — a transparent, controlled process at every gate.
01
Inquiry & Specification
Send drawings, samples or specs. Our engineers confirm requirements and advise on materials.
➜02
Engineering & Sample
2D/3D confirmation, DFM review and prototype cables in 48–72 hours for your approval.
➜03
Mass Production
Automated lines for cutting, soldering, molding and assembly with stable, repeatable quality.
➜04
QC & Global Delivery
100% electrical testing, AQL inspection and safe packaging, shipped to your global location.
20+
Testing &
Inspection
Instruments
Inspection
Instruments
Quality
& Laboratory
In-House Lab, Zero-Defect Commitment
Our test center validates every critical parameter so your products survive real-world vibration, temperature and corrosion — from prototype to mass production.
Continuity / Hi-Pot100% electrical & insulation resistance
Swing / Flex TestBending fatigue for flexible cables
Insertion / Pull ForceMating & terminal retention force
Salt SprayCorrosion resistance of plating
Temp / HumidityConstant temperature & humidity cycling
Aging & 2D VisionThermal aging + precision dimension check
Inside
Our Factory
Two Manufacturing Hubs, One Quality Standard
Headquartered in Shenzhen (R&D, sales and production, 1,500 m²) with a 7,200 m² production base in Ankang, Shaanxi since 2018 — and a 20-acre wire-harness industrial park under construction for the full industry chain.
1,500 m²Shenzhen HQ & production
7,200 m²Ankang production base
50Injection molding machines
400+Skilled employees
400+
Employees
Since 2006
Since 2006
Certifications & Honors
Compliance You Can Trust
Certified quality and association memberships that open doors to global markets.
Two-Speed Integration (A-Level)
GB/T 23001-2017 & GB/T 45341-2025 certified management system.
Shaanxi Gazelle Enterprise
Recognized as a high-growth enterprise by Shaanxi Science & Technology Dept.
ISO 9001
Quality management system certified since 2019.
National High-Tech Enterprise
National high-tech enterprise certification.
UL / RoHS / CE
Wire-harness assembly factory and environmental compliance.
HDMI / SATA / MFi
HDMI Association, SATA and MFi certified factory lines.
What Clients Say
Trusted by Buyers Worldwide
OEM buyers, distributors and system integrators rely on SAOJIE for consistent quality and on-time delivery.
“
★★★★★
Their custom wire harnesses performed consistently in our internal tests. Production is reliable and well organized.
M
Michael R.Procurement Manager, Germany
“
★★★★★
OEM customization was smooth and the product matched our technical requirements. A very professional experience.
S
Sarah L.Product Engineer, USA
“
★★★★★
We have cooperated for years on USB and HDMI cables. Fast samples, stable quality and on-time delivery every time.
D
Daniel K.Purchasing Director, Netherlands
News & Insights
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Get
a Free Quote
Send Your Drawings or Samples,
Send Your Drawings or Samples,
Get an Accurate Quote Fast
Tell us your product requirements and target quantity. Our engineering team replies within hours with material, tooling and cost advice.
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Call / WhatsApp+86 150-1354-5139 (Ms. Kuang)
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Emailclzkj2020@gmail.com
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HeadquartersA207 Shenshan Business Park, Hantang 1st Rd,
Henggang, Longgang, Shenzhen, China -
FactoryNingshan Flying-Industry Park, Ankang, Shaanxi, China
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