About CUI

Connectors Unlimited Inc. (CUI) is a Meritec Company that specializes in low (50 pieces) to multi million piece runs. We have rapid design capabilities that can help minimize time to market time frames. We provide a range of products and services including:

  • Cables
  • Connectors
  • Custom Molding
  • Custom Tooling
  • Contract Engineering
  • Manufacturing Services


Founded in 1997, Connectors Unlimited specializes in solving unique OEM challenges by providing high quality Interconnect solutions. Its core operations produce standard and custom interconnects such as board-to-board, I/O, and board to cable connectors.

Innovations in Interconnects

Connectors Unlimited’s unique Innovations In Interconnects (I3 Technologies) adds numerous capabilities ranging from Black Beauty (B2) thermoplastic connectors to Rapid Prototyping (RP). I3 Technologies unites innovative design and advanced technologies to deliver custom interconnects.
Industry achievements include over a dozen patents in the connector market as well as international industry recognition, by designing and manufacturing high-quality interconnects for major international medical equipment OEMs.

Industries Served

Computer | Telecom | Medical | Industrial Control


Features major OEM products. Services the discrete, mass terminated and overmolded cable harness industry. Learn more HERE.


Overview of Products and Services

From design to rapid prototyping, manufacturing and quality control, Connectors Unlimited is your source for interconnect solutions.

Our standard inserts provide lower costs. And, our ability to modify standard products from major suppliers shortens your time to market while conserving design costs by not “reinventing the wheel.” And, our veteran engineers have years of experience consolidating parts to make connectors serve two or more purposes, lowering your part count and manufacturing costs.


  • 1.27mm, 2mm, 0.100” and 0.156” center male and female custom PCB connectors.
  • Custom insert molded power connectors
  • Board Stacking
  • DIN and NEMA terminal block and barrier strip
  • Custom Injection Molding
  • High-Speed precision stamping
  • Tool Building Services
    • Injection Molds
    • Dies
    • Assembly Equipment
    • Production Machining
      • CNC
      • Wire EDM
We specialize in low (50 pieces) to multi-million piece runs. Our rapid design capabilities help maximize time to market time frames.

I3 Technologies Design and Engineering

End to End Solutions for Your Most Challenging Small Component Applications

Connectors Unlimited’s unique I3 Technologies combine innovative design and advanced technologies specifically engineered to meet customers’ interconnect needs. We keep rigorous control of each stage of the design, engineering and manufacturing process to ensure high quality while reducing costs. For more information, contact Customer Service Manager Angela Cisco at 800.447.8765 or acisco@meritec.com

Connectors Unlimited Innovation In Interconnect (I3) encompasses the following capabilities:

Precision Injection Molding (PIM)

Connectors Unlimited along with its Xponet Group sister companies, possess a depth of real world expertise in polymer behavior unique to the industry. Our wealth of expertise allows us to deliver real solutions to our customers’ most demanding applications.

Precision Insert Molding (PIMsert)

By combining many discrete parts into a single component and injecting thermoplastic around the carefully placed parts, (inserts) we are able to effectively reduce labor and assembly costs size and weight of parts, component count, while increasing reliability and design flexibility.


Precision High-Speed Stamping (PHS2)

We design and make our own dies using only certified and highly skilled die makers who are experienced in building close-tolerance and high precision tools.

Conductive/Static Dissipating Plastics (Black Beauty B2)

The demand for thermoplastics in the medical equipment industry has grown rapidly in recent years. Connectors Unlimited specializes in electrically conductive modifier technologies that, when compounded with thermoplastics, can provide protection against static accumulation, electrostatic discharge (ESD), and electromagnetic interference (EMI).


Quick Turn Tooling (QT2)

We can shorten your time to market. Connectors Unlimited can deliver actual engineering grade injection molded parts within days of receiving an order at a cost that meets your project objectives.

Rapid Prototyping (RP)

Our in-house engineering and design capabilities can help you reduce the construction time and cost of complex objects to a manageable, straightforward and relatively fast process.

Liquid Silicone Injection Molding (LSIM)

Connectors Unlimited’s unique low volume, cost effective LSIM process provides precise and clean parts – ideal for medical, electronic, industrial or aerospace applications. Liquid Silicone is a high quality and affordable alternative to rubber and other materials.

Overmolded Cable and Connector Assemblies

Overmolding is superior to conventional screw-together enclosures:

  • Provides positive cable strain relief.
  • Seals against harsh environments.
  • Reduced cost.
  • Minimum installed envelope dimensions compared to conventional terminations
  • Allows for customer-specific attachment features and labeling.

Black Silver® Cable and Connectors

Our Black Silver Electronic Cabling and Connector Assemblies eliminate exposed connector ends and offer a durable, sealed contact and cable connection that is ideal for harsh, extreme applications.

Design Facilities and Services

The key to producing high quality parts begins with superior design and engineering. With more than 45 years of cable and connector experience, culminating in more than 14 patents, combined with the most up to date advanced technology tools, Connectors Unlimited can solve your most complex product design or engineering analysis challenge.

  • In-House Design Staff
  • Rapid Prototyping
  • Tool Design
  • In-House Solid Modeling and Analysis
  • 3D Solids
    • Solidworks
  • 2D Design
    • AUTOCAD® 2007




Quality at Connectors Unlimited is much more than banners, buttons and slogans. Quality improvement is an integral part of each facet of our business.

Quality Credentials

  • ISO 9001:2008 CERTIFIED
  • UL
  • CSA
  • Numerous customer quality certifications

Additional Quality Processes

  • Detailed Process Documentation – We ensure quality and consistency through product-specific work instructions, job routings and operational work instructions.
  • Responsiveness – Each project is assigned to a dedicated customer support specialist who oversees the design and production process and serves as the communication conduit between the customer and design and production teams.
  • PPAP – Connectors Unlimited is experienced in the preparation of PPAP documentation for the automotive and medical industries.


Facilities and Equipment List

Our facility totals more than 31,000 square feet with 25,000 square feet of that devoted to manufacturing. We employ more than 55 full-time employees. Our manufacturing capabilities include:


  • Modular Molding and Tooling
  • Advanced Overmolding and Encapsulating
  • Ultrasonic Welding
  • Circular Connector Termination and Molding
  • Insert Molding
  • Precision Stampings
  • Standard Insert System
  • Modular Molds

Our standard insert systems utilize modular molds resulting in low cost and quick turnaround – usually in 1-4 weeks.


  • In-House Tool Design, Building and Maintenance

Equipment List


6 Arburg 15 Ton Vertical Insert Mold
2 Arburg 5 Ton Vertical Insert Mold
1 MiniJector 10 Ton Vertical Insert Mold
1 Newbury 75 Ton Horizontal
3 Newbury 30 Ton Shuttle
1 Newbury 10 Ton Vertical
1 Shinwa 120 Ton Horizontal
3 Newbury 100 Ton Horizontal
2 Boy 50 Ton Horizontal
1 Boy 22 Ton Vertical

CNC and Stamping

2 Fadal Vertical Machining Center
1 Zagar Vertical CNC Drill and Tap Center
1 Minster 215 High Speed Precision Punch Press

Engineered Systems

Look to Connectors Unlimited as a partner that will help solve your most extreme connector problems. Our products and services encompass engineered, modified standards, obsolete connector replacements, and custom components.

Example – Goodyear Blimp

  • Custom Design
  • Blimp Sign
  • Insert molded weather resistant
  • Design in 3 days prototypes in 7
  • Production in 12 weeks

4 pin .100” x .400” center male connector

  • Custom designed power and signal rail connector system allows data sending unit to be inserted and removed anywhere along extruded channel
  • CUI designed entire rail and connector package

Sealed Cable Connector System

Look to Connectors Unlimited as a partner that will help solve your most extreme connector problems. Our products and services encompass engineered, modified standards, obsolete product replacements, and custom components.

Utilizes molded cable technology,liquid silicone molding for interface gasket, high strength metal latches to produce a low cost moisture resistant interconnect system

Modified Standards

  • Standard DIN connector profiles
  • Unique conductive housings

Obsolete Connector Replacements

We may already have your connector. If not, we can make it. Save time, money and aggravation by calling us first.

Example: Hughes B2 Bomber radar Previous manufacturer obsoleted the product resulting in the grounding of several B2 Bombers. Connectors Unlimited was able to build special tooling and ship completed products in three weeks.


Board Stacking Header Systems

  • Alignment pins for blind mate
  • Eliminate separate board stacking components
  • Provides rigid board support

Custom Components

Utilizing CUI’s years of experience in injection molding and precision stamping we can not only offer interconnect systems but, also unique components based on those technologies.

Male and Female Headers

  • Std male and female headers
  • .025” sqr post .100” centers
  • Broad line
  • Custom modifications

Latching Headers

  • Single or dual row
  • 0.100” centers
  • Straight or right angle
  • Compact space saving design

Connectors Unlimited, Inc.

1359 West Jackson Street
Painesville, OH 44077 USA

Toll Free: 800.447.8765
Office: 440.354.2100
Fax: 440.354.0509
email: info@connectorsunlimited.com