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FormulaMod

FormulaMod PCIe 4.0 Riser Cable Vertical Bracket Kit, Graphics Card Extension Cord Adapter With 90° Angle, Metal Vertical Install Holder, Fm-XKYCX

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$40.81 set
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Purchase Note:
1. The actual content of the product is based on the product options in the link, other items such as GPU, case, motherboard, etc. are only for usage scenario display and reference.

2. In case of upgrading to the appearance and structure, no further notice, the real object shall prevail.

FAQ
Q1: Why does the PCB on connector side of the riser cable need to be made so wide?
A1: In order to pursue the ultimate low attenuation – avoid high-frequency signals passing through the PCB via holes (via holes have a great impact on high-frequency signals).

Q2: Why not use PCle 4.0 connector with metal armor?
A2: In order to pursue the ultimate performance.
Because the current 4.0 connectors with metal armor have pin-type solder pins. Although they are relatively strong, such solder pins will have an antenna effect, leading to increased crosstalk, large impedance deviation, increased insertion loss and other problems. (For PCle 5.0 connectors, most manufacturers basically do not use this pin-type soldering pin.)

Q3: What is the speed comparison of PCle4.0 X16 & PCle3.0 X16?
A3: PCle4.0 X16, the theoretical maximum speed is 32GB/S, and currently the measured speed of most PCle4.0 graphics cards is 20GB/s-25GB/s.
PCle3.0 X16, the theoretical maximum speed is 16GB/s, and currently the measured speed of most PCle3.0 graphics cards is 8GB/s-13GB/s.

Q4: Does the quality of the graphics card extension cable determine the transmission rate?
A4: Yes, but not entirely. The correct reason is because for a 3.0 extension cable, 4.0 motherboard + 4.0 graphics card, the speed will definitely not exceed 16GHz.
The wrong reason is because for a 4.0 extension cable, 4.0 motherboard + 4.0 graphics card that can make the system have sufficient attenuation margin, the upper limit of the transfer rate is determined by the CPU and graphics card, but it can definitely exceed 16GB/S.

Q5: Will the attenuation increase with the longer the line?
A5: Yes, the attenuation of our 20 cm product is about 2.8dB, and the attenuation of our 1 meter long product is about 7dB.

Q6: How to judge the high frequency performance of a PCle 4.0 extension cable?
A6: Use professional testing methods:
Network analyzers above 20GHz test the attenuation in the frequency band specified in the PCle 4.0 specification. The smaller the better.

Q7: Can the riser cable be bent?
A7: Yes, the wire can be bent at any angle. 90° / 180° bending and shaping will not affect the performance.
FormulaMod PCIe 4.0 Riser Cable Vertical Bracket Kit, Graphics Card Extension Cord Adapter With 90° Angle, Metal Vertical Install Holder, Fm-XKYCX  
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