--- product_id: 361237642 title: "MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm" brand: "millso" price: "R$178" currency: BRL in_stock: true reviews_count: 13 category: "Mill So" url: https://www.desertcart.com.br/products/361237642-millso-1-4-to-3-5mm-instrument-cable-trs-headphone store_origin: BR region: Brazil --- # 24K gold-plated connectors for lossless audio 12-inch flexible, durable cable length Quad-layer shielding for noise isolation MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm **Brand:** millso **Price:** R$178 **Availability:** βœ… In Stock ## Summary > 🎢 Plug in, stand out β€” sound that commands attention. ## Quick Answers - **What is this?** MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm by millso - **How much does it cost?** R$178 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/361237642-millso-1-4-to-3-5mm-instrument-cable-trs-headphone) ## Best For - millso enthusiasts ## Why This Product - Trusted millso brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Noise-Free Listening:** Quad-layer shielding blocks interference for crystal-clear stereo audio every time. - β€’ **Rock-Solid Connection:** Snug, click-confirmed fit ensures zero dropouts between your instruments and devices. - β€’ **Universal Compatibility:** Seamlessly connect guitars, pianos, amps, laptops, and smartphones with one sleek adapter. - β€’ **Audiophile-Grade Clarity:** Experience pristine, lossless sound with 24K gold-plated connectors and oxygen-free copper wiring. - β€’ **Confidence in Every Note:** Backed by a 12-month warranty with an optional 18-month extension and 24/7 support. ## Overview The MillSO 1/4 to 3.5mm instrument cable adapter delivers high-fidelity stereo audio transfer between professional 6.35mm devices and consumer 3.5mm ports. Featuring 24K gold-plated connectors, quad-layer shielding, and durable piano black metal housing, this 12-inch cable ensures stable, noise-free connections for headphones, instruments, and audio equipment. Perfect for musicians and audiophiles seeking reliable, premium sound quality with a trusted warranty and responsive customer support. ## Description desertcart.com: MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm : Electronics Review: Well built, nice connections, significant improvement in headphone sound -- no kidding - I listen to music and watch movies with Sennheiser 599 SE headphones. I've been connecting those using a coiled cable I bought over 10 years ago. Noticed recently that the sound seemed to jump in/out in one of the ears and decided it was time to try a new cable, so I ordered this MillSO cable. The cable arrived nicely packaged, and the materials had a high-quality feel on unpacking. Cable was supple, and connectors looked very nice. When I connected the headphones, the connector had a very nice, snug grip and the male end of the cable had a nice snug fit into my A/V box. Then I turned on the sound...wow! I was amazed at how much better my headphones sounded with this new cable. Being sure that I was probably just imagining, I switched back to the old cable, then back to the new cable. No question, sound was significantly better with the new cable. I know part of that was how bad the old cable was, but some of it has to be because of how good the new cable is. The manufacturer (MillSO) followed up with an email to make sure I got everything ok, and offered an 18-month extended warranty at no additional cost. I'm very pleased with this cable, highly recommend it. Just wish I had gotten it sooner! Review: Great adapter - I am using this adapter to connect a pair of 1/4" stereo headphones to the 3.5mm stereo audio output from my desk top computer. This set up works great. The adapter is well constructed and feels like it will last years. When I insert the headphones into the adapter you can feel a nice solid click to show the headphones are solidly connected. I have now purchased 2 of these adapters for different computers and headphones. I like them that much. Quality item. ## Features - MillSO 1/4"(6.35mm) female to 1/8"(3.5mm) male headphone adapter cable, for transferring audio between 3.5mm devices(smartphones, tablets, or headphones) and 6.35mm devices(amplifier, guitar, piano, mixing console, home stereo system...). Eg: 6.35mm headphone to computer adapter, amplifier to headphones/3.5mm speaker adapter, piano to 3.5mm adapter, guitar to speaker adapter, etc. - [Plug and Play] - MillSO 1/4 to 3.5mm headphones adapter is very portable and has a quick response, tight connection, flexible convert a 6.35mm port to a 3.5mm port. - [Qualified 6.35mm Audio Adapter] - 24K gold-plated connectors ensure high stability, high-speed lossless transmission; piano black metal housing is wear-resistant, anti-corrosion, and solid protection; tin-plated oxygen-free copper wiring for high fidelity, pure sound quality. - [Quadr-Layer Shielding] - this 6.35 to 3.5 adapter perfectly combined tinned coppers, aluminum foil, soft and durable PVC covers, its high-density shielding protection, and effective isolation, offer a full and delicate tone, highly restored quality sound. - [Reliable Warranty] - Buy with confidence. MillSO offers a 12-month unconditional Warranty for our instrument cables to guard against any quality trouble (you can also extend it to 18 months by contacting our support team). Need help? Contact our 24-hour warm customer support team anytime, we will be more than happy to solve any problem for you! - [Notice 1] - Please rotate plugs gently, you will hear a "click" when it's connected correctly, before playing the music, make sure all cables have been put into jacks absolutely. - [Notice 2] - This instrument cable is TRS standard. Please notice that the devices you use should also have a stereo TRS jack. Transfer stereo audio between devices, no mic. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09B77Z5MQ | | Best Sellers Rank | #17,194 in Electronics ( See Top 100 in Electronics ) #303 in Headphone Adapters | | Brand | MillSO | | Color | Piano Black | | Compatible Devices | computer, smartphone, headphone, speaker, guitar, tablets, amplifier, piano, mixing console, home stereo system... Compatible Devices computer, smartphone, headphone, speaker, guitar, tablets, amplifier, piano, mixing console, home stereo system... See more | | Connector Type | Trs 1/4" Female to 3.5mm Male Stereo Audio Adapter | | Customer Reviews | 4.6 out of 5 stars 3,045 Reviews | | Finish | Gold | | Finish Type | Gold | | Item Dimensions | 12 x 3 x 0.4 inches | | Item Weight | 0.03 kg | | Item dimensions L x W x H | 12 x 3 x 0.4 inches | | Manufacturer | MillSO | | Mfr Part Number | MM35-F635-30B-US | | Model Number | M35-F635-30B | | Number of Items | 1 | | Number of Ports | 1 | | Package Quantity | 1 | | Unit Count | 1 Count | | Warranty Description | MillSO offers a 12-month unconditional Warranty for all our products to guard against any quality trouble or compatibility issue. You can extend it to 18 months by contacting MillSO 24-hour customer support team. We are more than happy to solve any problem for you! | | Warranty Type | Extended | ## Product Details - **Compatible Devices:** computer, smartphone, headphone, speaker, guitar, tablets, amplifier, piano, mixing console, home stereo system... - **Connector Type:** Trs 1/4" Female to 3.5mm Male Stereo Audio Adapter - **Color:** Piano Black - **Item dimensions L x W x H:** 12 x 3 x 0.4 inches - **Brand:** MillSO ## Images ![MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm - Image 1](https://m.media-amazon.com/images/I/71XiHaW1SLS.jpg) ![MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm - Image 2](https://m.media-amazon.com/images/I/81Wvz1qeU6L.jpg) ![MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm - Image 3](https://m.media-amazon.com/images/I/61YCVdwo+GL.jpg) ![MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm - Image 4](https://m.media-amazon.com/images/I/61ixiEpcutL.jpg) ![MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm - Image 5](https://m.media-amazon.com/images/I/618qPbIy81L.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Can it take a 1/4 mono signal and split it into L/R channels on the 1/8 plug?** A: No, you need a purpose built adapter for that. **Q: Is this cable 12"tip to tip, or is is a 12" cable?** A: Tip to tip length is 14.25" . I don't know where the 12" measurement comes from, but the cable length itself (minus both connectors length) is 10.5" Hope this helps. **Q: Does this work for a talkbox?** A: This is a passive adapter which simply allows an audio cable with a male 1/4in. connector to be plugged into any audio device having a 1/8in. socket. There is every reason to believe that it will work with a "Talk Box" if that device needs such an adapter. **Q: Can this work in either direction, i.e., 3.5mm to ΒΌ" as well as ΒΌ" to 3.5mm?** A: Dear Amazon Customer, Yes, this MillSO 1/4 to 3.5mm adapter can work in either direction (3.5mm to ΒΌ" as well as ΒΌ" to 3.5mm). Thank you for your question. Hope this answer will help you, if you have any other concerns, please contact us via support@millso.com, we will always be more than happy to assist you. Best regards MillSO Technical Support Team ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well built, nice connections, significant improvement in headphone sound -- no kidding *by G***R on February 13, 2021* I listen to music and watch movies with Sennheiser 599 SE headphones. I've been connecting those using a coiled cable I bought over 10 years ago. Noticed recently that the sound seemed to jump in/out in one of the ears and decided it was time to try a new cable, so I ordered this MillSO cable. The cable arrived nicely packaged, and the materials had a high-quality feel on unpacking. Cable was supple, and connectors looked very nice. When I connected the headphones, the connector had a very nice, snug grip and the male end of the cable had a nice snug fit into my A/V box. Then I turned on the sound...wow! I was amazed at how much better my headphones sounded with this new cable. Being sure that I was probably just imagining, I switched back to the old cable, then back to the new cable. No question, sound was significantly better with the new cable. I know part of that was how bad the old cable was, but some of it has to be because of how good the new cable is. The manufacturer (MillSO) followed up with an email to make sure I got everything ok, and offered an 18-month extended warranty at no additional cost. I'm very pleased with this cable, highly recommend it. Just wish I had gotten it sooner! ### ⭐⭐⭐⭐⭐ Great adapter *by B***N on March 16, 2024* I am using this adapter to connect a pair of 1/4" stereo headphones to the 3.5mm stereo audio output from my desk top computer. This set up works great. The adapter is well constructed and feels like it will last years. When I insert the headphones into the adapter you can feel a nice solid click to show the headphones are solidly connected. I have now purchased 2 of these adapters for different computers and headphones. I like them that much. Quality item. ### ⭐⭐⭐⭐⭐ Seems well made, works as expected *by K***T on December 31, 2024* We have a "vintage" pair of headphones with only a 1/4 inch plug. Most things today seem to have adopted the 3.5 mm jack (the "1/8 inch" designation is a holdover from history; 1/8 inch is 3.175 mm). The MiLLSO adapter performs exactly as expected. The 1/4 inch jack holds the plug solidly, and the 3.5 mm plug fits its jack perfectly. The cable between jack and plug is nice for our application, though some might prefer a solid unit. Recommended. ## Frequently Bought Together - MillSO 1/4 to 3.5mm Instrument Cable, TRS Headphone Adapter 6.35mm Female to 3.5mm Male 1/8 to 1/4 Stereo Audio Adapter for Amplifier, Guitar, Piano, Speaker to Phone, Laptop, Headphone - 12inch/30cm - ANDTOBO 1/4'' to 3.5 mm Stereo Pure Copper Headphone Adapter, 3.5 mm(1/8'') Plug Male to 6.35 mm (1/4'') Jack Female Stereo Adapter for Headphone, Amp Adapter, Black 2-Pack - MOBOREST 3.5mm M to 6.35mm F Stereo Pure Copper Adapter, 1/8 Inch Plug Male to 1/4 Inch Jack Female Adapter, Can be Used Conversion Headphone adapte, amp adapte, Black Fashion 2-Pack --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.br/products/361237642-millso-1-4-to-3-5mm-instrument-cable-trs-headphone](https://www.desertcart.com.br/products/361237642-millso-1-4-to-3-5mm-instrument-cable-trs-headphone) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-08-19*