--- product_id: 250423664 title: "Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA" brand: "retailandbulk" price: "¥2901" currency: JPY in_stock: true category: "Retail And Bulk" url: https://www.desertcart.jp/products/250423664-phone-jack-splitter-for-landline-telephone-rj11-6p4c-2-way store_origin: JP region: Japan --- # Gold Plated Contacts - Zero signal loss 3 Female RJ11 Jacks - Dual device ready ABS UL 94-V2 Housing - Durable & fire-resistant Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA **Brand:** retailandbulk **Price:** ¥2901 **Availability:** ✅ In Stock ## Summary > 📞 Stay connected, twice as nice — never miss a call or fax again! ## Quick Answers - **What is this?** Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA by retailandbulk - **How much does it cost?** ¥2901 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/250423664-phone-jack-splitter-for-landline-telephone-rj11-6p4c-2-way) ## Best For - retailandbulk enthusiasts ## Why This Product - Trusted retailandbulk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last, Made in USA:** Precision-crafted with premium ABS and copper for unmatched durability - • **Compact & Versatile Design:** 2.5-inch cable fits perfectly in-line or in-wall setups without clutter - • **Signal Integrity Guaranteed:** Gold-plated contacts ensure crystal-clear communication every time - • **Double Your Connection Power:** Split one RJ11 line into two seamless device links - • **RoHS Certified & Eco-Friendly:** Safe, compliant materials for responsible tech users ## Overview This USA-made RJ11 Phone Jack Splitter expands a single landline connection into two with three female jacks, featuring a durable ABS UL 94-V2 housing, thick pure copper wiring, and gold-plated contacts to ensure zero signal loss. Its compact 2.5-inch cable supports both in-line and in-wall installations, is RoHS certified, and compatible with all standard RJ11 devices including phones, fax machines, and modems. ## Description Buy RetailAndBulk Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA: Connectors & Adapters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 1 to 2 Phone Jack Splitter with 3 Female RJ11 Jacks and High Quality 2.5 inch Phone Cable - Expand a Single Telephone Line Jack to Connect 2 Devices, such as a Phone and Fax - Premium Quality build of durable ABS UL 94-V2 housing, thick pure Copper Wires, and Gold Plated contacts to ensure no signal loss - All Splitter and Cable Components are RoHS Certified - Precision Made and Tested in USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08KG7XZKT | | Best Sellers Rank | #93 in Telephone Wires | | Brand Name | RetailAndBulk | | Cable Type | Telephone Cable | | Color | Black | | Compatible Devices | Answering Machine, Caller ID, DSL Modem, Fax, Telephone | | Compatible Phone Models | All standard RJ11 landline phones (e.g., Panasonic, AT&T, VTech, GE) | | Connector Gender | Female-to-Female, Male-to-Female | | Connector Type | RJ11 | | Customer Reviews | 4.6 4.6 out of 5 stars (2,579) | | Gauge | 24 | | Included Components | Phone Jack Splitter and Cable | | Indoor Outdoor Usage | Indoor, Outdoor | | Item Shape | Flat | | Manufacturer | RetailAndBulk | | Model Name | RJ11 Phone Jack Splitter | | Number of Items | 1 | | Number of Pins | 4 | | Other Special Features of the Product | Premium materials ensure full signal integrity | | Part Number | RJ11 Duplex Adapter with 3 inch Cable | | Recommended Uses For Product | Connecting and managing multiple landline phones, fax machines, or modems | | Specification Met | RoHS | | UPC | 618020833043 | | Unit Count | 1 Count | ## Product Details - **Brand:** RetailAndBulk - **Cable Type:** Telephone Cable - **Compatible Devices:** Answering Machine, Caller ID, DSL Modem, Fax, Telephone - **Connector Type:** RJ11 - **Special Feature:** Premium materials ensure full signal integrity ## Images ![Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA - Image 1](https://m.media-amazon.com/images/I/3120kIyMZoL.jpg) ![Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA - Image 2](https://m.media-amazon.com/images/I/41vey+IisYL.jpg) ![Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA - Image 3](https://m.media-amazon.com/images/I/51oKXe+zI4L.jpg) ![Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA - Image 4](https://m.media-amazon.com/images/I/41AJgj1TfWL.jpg) ![Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA - Image 5](https://m.media-amazon.com/images/I/51CnoMnbUiL.jpg) ## Available Options This product comes in different **Color, Size, Number Of Items** options. ## Questions & Answers **Q: I need a bulk order of phone jack splitters quickly. Should I choose Amazon Prime or Ships from RetailAndBulk?** A: Ships from RetailAndBulk is fastest for bulk orders. We ship all splitters in one shipment the next business day from our NY workshop where we make them. Prime may need to transfer stock to one warehouse first or send multiple packages. **Q: Are these phone splitters compatible with all landline phones?** A: Yes, our splitters are compatible with all standard RJ11 landline phones, including AT&T, Panasonic, cordless phones, and 2-line phones. Each splitter is tested before shipping to ensure reliable performance and a great customer experience. **Q: Can I connect 2 phone handsets to this splitter?** A: No, handsets use RJ9 connectors which are smaller than RJ11 **Q: Can I use these telephone line splitters with fax machines and DSL modems?** A: Yes, our phone splitters are straight-wired to support both voice and data connections. They work with fax machines, DSL modems, and all standard landline phones. Each part is tested to ensure stable connectivity and reliable performance. **Q: Do you offer bulk discounts on large orders?** A: Yes, if you have an Amazon Business account, you will see it when adding large quantity to cart. We’ve served many large-scale projects, including hotels, retail chains, new constructions, schools, hospitals, TV stations, and fire departments. ## Frequently Bought Together - RetailAndBulk Phone Jack Splitter for Landline Telephone RJ11 6P4C 2-Way in-Line or in-Wall Duplex Adapter (1 Splitter + 2.5 Inch Cable) Made in USA - G-PLUG RJ11 to RJ11 Cable, High Speed ADSL Cable for Internet Broadband, Router, Telephone, WiFi, Easy to Fit in Phone Socket/Black, 3ft --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/250423664-phone-jack-splitter-for-landline-telephone-rj11-6p4c-2-way](https://www.desertcart.jp/products/250423664-phone-jack-splitter-for-landline-telephone-rj11-6p4c-2-way) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-28*