8P4C Unshielded RJ45 Modular Plug – Gold-Plated CAT5e/CAT6 UTP Ethernet Crystal Connector (Bulk 100-Pack)

8P4C UTP Modular Plug – Pure Copper Gold Plated 4-Contact Connector with Custom Logo and Free Samples

The 8P4C unshielded modular plug from PROUNTA is the cost-smart specialist of the modular connector family: a standard RJ45-size eight-position body loaded with only four pure copper contacts in the center positions (pins 3, 4, 5, 6). Wherever a link carries just one or two pairs — analog telephone trunks, PBX systems, POS terminals, DSL splitter cords, or two-pair 10/100BASE-TX industrial Ethernet — the 8P4C delivers the same plug body, latch, and jack compatibility as a full 8P8C modular connector while eliminating the cost of four unused gold plated contacts. Multiply that saving across a million-piece annual volume and the business case writes itself.

PROUNTA is a factory-direct modular plug manufacturer with in-house pin stamping, electroplating, injection molding, laser marking, and 100% electrical testing, shipping 50M+ pcs monthly to telecom distributors, cable assembly plants, and OEM brands worldwide. This 8P4C is available with your custom logo, full private-label packaging, and free samples so you can validate it on your own production line before ordering.

What Exactly Is an 8P4C Plug?

Modular connectors are named by positions and contacts: 8P4C means an 8-position housing with 4 contacts installed. The body dimensions (22.4 × 11.6 × 8.0mm) are identical to the familiar RJ45-size plug, so it mates with any standard 8-position jack and crimps with any standard 8P crimping tool. Only the center four positions carry blades, which aligns with the pinout used by one- and two-pair services: the blue pair on pins 4–5 and the second pair on pins 3–6 — the layout behind analog phone lines on structured cabling, RJ61-style voice wiring, and two-pair Ethernet. Industrial automation vendors, including major PLC brands, specify 8P4C plugs for exactly this reason: 10/100BASE-TX needs only two pairs, and fewer loaded contacts means fewer termination points to inspect. If your application needs all four pairs, see our fully loaded Cat5e & Cat6 8P8C plugs instead.

Pure Copper Contacts – No Iron Core, No Hidden Failures

Each of the four blades is stamped from solid pure copper alloy strip — never iron-core or copper-clad steel, which commodity suppliers hide behind a thin gold flash. The difference is verifiable with a magnet (copper never sticks) and measurable in service: lower bulk resistance for clean voice levels and stable data, no internal rust when humidity penetrates the plating, and ductile crimping that stays gas-tight for the life of the link. Blades are 0.35mm thick, nickel underplated, and finished in hard gold from 3µ” to 50µ” — specify the grade per your market, from cost-driven telephone cords to premium industrial assemblies. Every copper lot ships with material certificates, and we support third-party spectrometer verification (SGS/TÜV) on request.

Free Samples and Custom Logo Program

Qualified B2B buyers receive free samples — typically 20–50 pcs, mixed gold grades on request — to test crimp height, pull-out force, and continuity with their own tooling and cable. When you scale to a branded program, your logo is applied by laser engraving (permanent, zero tooling cost, MOQ from 10,000 pcs) or in-mold embossing (built into the tool, for 100,000+ pcs per SKU). The 100% virgin polycarbonate housing — crystal clear, UL 94V-2, ±0.05mm tolerance — renders logos with crisp edges, and packaging follows your artwork across PE bags, printed boxes, blister cards, and master cartons with barcodes and compliance marks. A free digital mockup is returned within 24 hours of receiving your logo file.

Technical Specifications

Where 8P4C Saves Money Without Cutting Corners

Telecom assembly plants building phone patch cords and DSL splitter leads save four gold contacts per plug versus 8P8C at identical line speed. POS and payment terminal makers use 8P4C for serial and phone-line ports where only center pins are wired. Industrial panel builders running two-pair Ethernet to HMIs and drives get fewer terminations to validate. And telecom operators bundling branded install kits cut consumable cost across millions of drops. Because the body is standard 8-position, your existing 8P crimp tools, strippers, and jacks all work unchanged — no retooling required.

Order Samples First, Then Scale with Your Brand

Start with free samples, verify them on your line, then launch your branded program with a free logo mockup in 24 hours and production in 7–15 days. One container can consolidate 8P4C plugs with our RJ11/RJ12 telecom connectors and strain relief boots, pass-through RJ45 plugs, and Cat5e/Cat6 8P8C plugs under one brand identity. Contact our team for free samples and a same-day quotation.

Frequently Asked Questions

Q1: Will an 8P4C plug fit a normal RJ45 jack and crimping tool?
Yes. The housing is a standard 8-position body with identical dimensions to an 8P8C plug, so it mates with any compliant 8-position jack and crimps with any standard 8P tool. Only the four center contact slots are loaded.

Q2: Can I use 8P4C for Gigabit Ethernet?
No. 1000BASE-T requires all four pairs (8 contacts). 8P4C supports two-pair services: 10BASE-T, 100BASE-TX, analog voice, DSL, and serial/POS wiring. For Gigabit and PoE++ applications, choose our 8P8C Cat5e or Cat6 plugs.

Q3: How do I get free samples and what should I test?
Send an inquiry with your company details and application. We ship 20–50 pcs free to qualified B2B buyers. We recommend testing crimp height with your tool dies, conductor pull-out force, continuity on pins 3–6, and the magnet test to confirm pure copper.

Q4: What are the MOQ and options for a custom logo?
Laser engraving from 10,000 pcs with no tooling fee; in-mold embossing above 100,000 pcs per SKU with a one-time mold charge. Private-label packaging printing starts from 5,000 packs per artwork.

Q5: Can you load different contact positions or supply 8P2C / 10P versions?
Yes. As an ODM factory we can load custom contact positions (e.g., pins 1–2/7–8 for special pinouts), supply 8P2C, 8P6C, or 10P10C variants, and match housing tint colors to your brand. Share your wiring diagram and our engineers will confirm feasibility within 24 hours.