--- product_id: 157263487 title: "BT Openreach NTE5C MK2 Master + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data (5c Mark 2 + 4 + Surface Mount)" brand: "1stec" price: "142.29 DT" currency: TND in_stock: true reviews_count: 8 category: "1 S Tec" url: https://www.desertcart.tn/products/157263487-bt-openreach-nte5c-mk2-master-mk4-faceplate-back-box-combination store_origin: TN region: Tunisia --- # Boosts broadband speeds Reduces static & interference Tool-less, easy installation BT Openreach NTE5C MK2 Master + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data (5c Mark 2 + 4 + Surface Mount) **Brand:** 1stec **Price:** 142.29 DT **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your home network with the ultimate plug-and-play broadband boost! ## Quick Answers - **What is this?** BT Openreach NTE5C MK2 Master + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data (5c Mark 2 + 4 + Surface Mount) by 1stec - **How much does it cost?** 142.29 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/157263487-bt-openreach-nte5c-mk2-master-mk4-faceplate-back-box-combination) ## Best For - 1stec enthusiasts ## Why This Product - Trusted 1stec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug & Play Simplicity:** No IDC tool needed—just insert unstripped wires and snap the cam lock for instant connection. - • **Interference-Free Calls:** Advanced filtering technology drastically cuts static, delivering crystal-clear telephone sound quality. - • **Next-Level Connectivity:** Integrated VDSL+ADSL microfilter eliminates extra adapters for seamless broadband & phone clarity. - • **Speed Upgrade Guaranteed:** Users report noticeable improvements in download and upload speeds with this upgraded master socket. - • **Complete Installation Kit:** Includes faceplate screws, back box, and full-color instructions for a hassle-free DIY upgrade. ## Overview The BT Openreach NTE5C MK2 Master socket with MK4 faceplate and back box is a professional-grade combination socket designed for fibre broadband and filtered telephone lines. Featuring an integrated VDSL+ADSL microfilter, it eliminates the need for separate adapters, reduces static and interference for superior call quality, and enhances broadband speeds. Its tool-less, self-crimping design allows quick, hassle-free installation, making it the go-to upgrade for millennial professionals seeking reliable, high-performance home connectivity. ## Description 1STec BT Openreach NTE5C MK2 Master + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data (5c Mark 2 + 4 + Surface Mount) : desertcart.co.uk: DIY & Tools Review: Good replacement for older style boxes - Had an issue with our telephone/internet connection and BT advised issue is internal connections not BT Line( which proved to be incorrect) However, as we had an older style box, purchased this as a replacement (although it transpired there was no issue with the old box) this works much better - box is quite deep, so some people may not like this, but that's because it now incorporates a test point connection, with an outer casing that can be removed with out disturbing the internal wiring connections. It also has direct connection for the separate internet cable (RJ45) so no need for an adaptor/adsl filter. Review: Spot on - Easy to install inserted wires into slots A and B at the back clicked down . After research I found it doesn't matter which wire goes to A and which goes to B. Saved myself money doing it myself instead bt . ## Features - NTE5C+MK4+BACK BOX - This new improved model reduces Static and Interference producing better Telephone Sound Quality and Improved Broadband Speeds - BUILT IN MICROFILTER - Integrated VDSL+ADSL Bell Wire Filter in the MK4 Front plate negates the need for microfilters at the Master or on your Extension Sockets - NO IDC TOOL NEEDED - Self Crimping Tool-Less MK2 NTE5c with Clear Cam Lock Terminations. Simply insert Unstripped conductors and Close the Clip to connect - INSTALL INSTRUCTIONS - Supplied with 2 x M3.5 Faceplate screws + 2 back box Screws, NTE5c + MK4 front Plate, Back Box and full Colour installation instructions - IMPROVES BROADBAND - Many users report an improvement in their download and upload speeds. This is due to the better filters that are fitted to these newer units ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07XQ3JCNS | | ASIN | B07XQ3JCNS | | Age Range Description | Adult | | Apparel Fabric Stretch | No Stretch | | Apparel Fabric Weight Class | Medium Weight | | Best Sellers Rank | 163,063 in DIY & Tools ( See Top 100 in DIY & Tools ) 993 in Wall Electrical Outlets | | Brand Name | 1STec | | Closure Type | clip | | Colour | White | | Country of Origin | United Kingdom | | Customer Reviews | 4.6 4.6 out of 5 stars (137) | | Customer reviews | 4.6 4.6 out of 5 stars (137) | | Date First Available | 18 Aug. 2019 | | Global Trade Identification Number | 05060583534458 | | Item model number | NTE5C MK2 | | Manufacturer | 1STec Telephone | | Manufacturer | 1STec Telephone | | Model Number | NTE5C MK2 | | Occasion | Birthday | | Package Dimensions | 20.6 x 13.9 x 2.8 cm; 30 g | | Part Number | WD00002 | | Pattern | Solid | | Product Care Instructions | Hand Wash Only | | Sleeve Length Description | Sleeveless | | Socks Form | Tube Socks | | Sport Type | Running | | Style | NTE5c + MK4 + Back Box | | Subject Character | other | | Unit Count | 1.0 count | ## Images ![BT Openreach NTE5C MK2 Master + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data (5c Mark 2 + 4 + Surface Mount) - Image 1](https://m.media-amazon.com/images/I/71OMkON947L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good replacement for older style boxes *by K***B on 18 July 2020* Had an issue with our telephone/internet connection and BT advised issue is internal connections not BT Line( which proved to be incorrect) However, as we had an older style box, purchased this as a replacement (although it transpired there was no issue with the old box) this works much better - box is quite deep, so some people may not like this, but that's because it now incorporates a test point connection, with an outer casing that can be removed with out disturbing the internal wiring connections. It also has direct connection for the separate internet cable (RJ45) so no need for an adaptor/adsl filter. ### ⭐⭐⭐⭐⭐ Spot on *by A***R on 10 January 2022* Easy to install inserted wires into slots A and B at the back clicked down . After research I found it doesn't matter which wire goes to A and which goes to B. Saved myself money doing it myself instead bt . ### ⭐⭐⭐⭐⭐ Faster internet *by D***E on 4 March 2020* This BT Openreach NTE5C is a definite improvement on the old system. With this new face plate there are separate sockets for phone and Internet so there is no need for microfilters. Simple to fit with clear instructions. Check if you need all the components. For example I did not need the back box and a kit without the back box would have been marginally cheaper. The internet does seem a bit faster in that pages seem to load quicker. ## Frequently Bought Together - 1STec BT Openreach NTE5C MK2 Master + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data (5c Mark 2 + 4 + Surface Mount) - 1STec BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White) - 1STec BT66b Grey external use enclosure for BT Openreach Telephone cable above ground weatherproof connection junction box + 6 waterproof gel filled wire joining crimps + lead clamps + mounting screws --- ## 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.tn/products/157263487-bt-openreach-nte5c-mk2-master-mk4-faceplate-back-box-combination](https://www.desertcart.tn/products/157263487-bt-openreach-nte5c-mk2-master-mk4-faceplate-back-box-combination) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-07*