SKU: 48548018310

Furutech NCF Clear Line-USB Line Optimizer

Sale price$180.00 Regular price$200.00
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

Furutech NCF Clear Line-USB Line OptimizerRATING NCF Clear Line USB USB Optimizer (1pcs) Plug and play, youll notice the effects immediately. With overwhelming improvement In S N (signal to noise) ratio, youll experience an increase in detail information, taking your listening or viewing experience to the next level and enhancing the reproduction of subtle nuances. Without coloring the sound, it brings out the original appeal of your sound source. FEATURES Technology: Featuring 24k Gold

RATING

NCF Clear Line-USB “USB Optimizer” (1pcs)

“Plug and play, you’ll notice the effects immediately. With overwhelming improvement In S/N (signal-to-noise) ratio, you’ll experience an increase in detail information, taking your listening or viewing experience to the next level and enhancing the reproduction of subtle nuances. Without coloring the sound, it brings out the original appeal of your sound source.”


FEATURES

Technology:
Featuring 24k Gold-Plated Nonmagnetic USB Connectors
A specially engineered 24k gold-plated copper alloy EMI shield incorporated into the USB connector provide more stable, clearer, and more accurate audio transmission. The excellent conductivity of gold can ensure more stable, accurate signal transmission stability, and consistency of audio signals. Reduced Electromagnetic Interference is essential for avoiding interference from electromagnetic noise in the surrounding environment.

Electrolytic Capacitor
Our electrolytic capacitors are engineered to optimize the acoustic performance of your devices. We’ve conducted extensive testing to select the ideal type and specifications of capacitor to elevate sound quality to its highest potential. The outer layer of our electrolytic capacitors is coated with a high-performance silver-colored special damping treatment, effectively suppressing unwanted vibrations, and enhancing sound clarity. Additionally, our capacitors feature advanced tuning technology designed to eliminate any noise interference originating from your equipment’s output terminals, ensuring an unparalleled sound experience.

Usage:
Using Furutech’s NCF Clear Line-USB is easy. Simply insert the NCF Clear Line-USB into the available USB terminals of your equipment. For optimal results, insert this product into the available USB terminals of your system’s preamp, AV receiver/DAC/Streaming Player.
The improvement in performance is remarkable. You will immediately notice an improvement in soundstage depth and focus, as well as in the improvement of harmonics and balance of sound. It increases transparency and reduces high-frequency noise. It enhances the overall contrast, reduces distortion, and increases clarity.

Furutech’s Two-Stage Cryogenic and Demagnetization Alpha Process
Using cutting-edge technology and materials, Furutech developed a low-temperature two-stage process that significantly improves every facet of audio and video performance. The treatment begins during the manufacturing process with a deep, conditioning cryogenic freeze of all metal parts. Using high-end refrigerants — liquid N2 or He — Furutech achieves temperatures of between -196 to -250℃. The treated parts change their molecular structure at these extremes of temperature relieving internal stress. The molecules bond together more tightly, and the overall structure becomes more stable. This improves electrical conductivity and so power and signal transfer. Step two in the Alpha Process exposes these same parts to the patented Ring Demagnetization treatment. Ordinary high-power magnets used for this purpose often increase magnetic effects; they leave some areas more magnetized than others. This patented process uses controlled attenuation to eliminate magnetization for immediately more vivid and colorful improvements. Ring Demagnetization further enhances conductivity of all treated materials.
ALL metallic parts used in Furutech products go through the Alpha Process treatment to keep all connectors, conductors, and metal parts in a perfect stress-free, stable, and highly conductive state.

Features
1. NCF Clear Line-USB
Featuring 24k Gold-Plated Nonmagnetic USB Connectors
A specially engineered 24k gold-plated copper alloy EMI shield incorporated into the USB connector provide more stable, clearer, and more accurate audio transmission.

2. Semi-sealed air chamber:
The internal air chamber is pressure sealed to for additional damping effects.

3. The NCF Clear Line-USB housing body ring has been formed from special resonance damping Stainless Steel and Furutech’s NCF material and the housing constructed of 4 layers of special hybrid NCF forged texture carbon fiber. The best of damping and insulation materials improve frequency extension and tonal balance.

4. The NCF End Cover is formed from special heat resistant nylon and Furutech’s NCF material for improved effectiveness – ultimate resonance damping for improved tonal balance.

5. The main body and shell of the product are fixed with special anti-shock stainless steel
security screws customized. Factory adjusted to optimum torque value for performance.

*(The screws are fixed, please do not disassemble, or modify by yourself.)


SPECIFICATIONS

Note:
※ The screws of this product are fixed. Please do not disassemble or modify by yourself.
※ We recommend aging for 24 hours or more.
※ The carbon fiber pattern of the shell varies depending on the product. It is formed with composite carbon damping material and will only enhance the listening experience.
※ Furutech uses non-magnetic stainless steel for some parts. However, stainless steel parts may exhibit weak magnetism due to stresses created during fabrication. It does not affect performance.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48548018310

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4.7 ★★★★★
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Milagros Ramos
Bozeman, US
★★★★★ 4
High quality, perfect color and very nice price!
Size: 14, Color: Brown, Size: 14, Color: Brown
I bought this shoes for my husband's Christmas present, so he didn't try yet. So far, the color is perfect! I feel like he can wear this shoes with different outfits, for the price it seems hight quality, it is not heavy at all. The shoe features a soft, comfortable lining and the sole is perfect because it is non-slip.
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Reviewed in the United States on December 4, 2025
E
Verified Purchase
effie
Lexington, US
★★★★★ 5
Squeaky
Size: 8, Color: Black
They look incredible. But they're a little squeaky. Otherwise my husband loves the comfort. They go with any outfit
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Reviewed in the United States on May 11, 2026
B
Verified Purchase
Boito
Boise, US
★★★★★ 5
These fit very nicely, are comfortable, and work for my wide feet!
Size: 12 Wide, Color: Brown
Once I learned while shoe shopping in my youth that I needed wide-sized shoes, I wasn't able to easily choose from any shoes I saw in the store. I usually have to go find the wide widths and have to deal with the limited styles they have. Shopping online has been hit and miss, too. Sometimes, shoes are advertised as wide width, but end up still being too narrow. These shoes fit me just right. They were not too tight at the toes, gave good width at the arch, and the opening was large enough that I didn't have to undo every single lace just to get my foot in. They also look nice, and I'm sure will take a decent polish. Also, note that this does say it's an Oxford shoe, but it does have the open lacing and is more of a derby-style shoe. This also helps with sizing for my wide feet. If I didn't already have a pair of black shoes, I'd look at picking one of these up. My only reservation with these is that the soles are not dark-colored to complement a more formal style. I feel the white makes them a little more casual. The sole is also more transparent/opaque coloring at the heel and underneath, which you can kind of see-through, so keep that in mind. It's not fully clear, but is kind of transparent, which I was not expecting. I think it also shows where it picks up dirt as you wear it. Just more of a style cue one way or another. As a reference, I buy the 4E wide and Extra Wides in New Balance and Skechers. I also have a hard time getting any good fit in Nike shoes.
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Reviewed in the United States on October 2, 2023
M
Verified Purchase
Michelle sealock
Houston, US
★★★★★ 5
Looks and feel good
Size: 10.5, Color: Black
Shoes look dressy but feel comfortable. They are stiff but very comfortable.
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Reviewed in the United States on June 8, 2026
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Riley H.
Lowell, US
★★★★★ 5
Well made and affordable
Size: 10.5, Color: Brown
Very comfortable, great price!!!!!!
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Reviewed in the United States on April 30, 2026

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