Date2018Q12021Q22023Q2Supported BandwidthPCIe 3.0 x4PCIe 4.0 x4PCIe 4.0 x4Core Wire Spec3rd Gen 6P×14th Gen 6P×15th Gen ShieldingNoYesYesConductor MaterialTin-plated CopperTin-plated CopperSilver-plated CopperJacket Impedance95 Ω100 Ω85 ΩConnector BrandLotesLotesLotesCable ColorBlackBlack / White / SilverSilverMax Power Support75W (max.)75W (max.)75W (max.)Pin CompatibilityPCIe x8 connectorPCIe x4 fingerPCIe x8 connectorPCIe x4 fingerPCIe x8 connectorPCIe x4 fingerCLKRUN#, WAKE#, SMBUS, JTAG1~5CertificationsRoHSRoHS, ULRoHS, ULScrew Hole Spacing7.8cm7.8cm8.4cmGold Plating MaterialFiberglass BoardFiberglass BoardAluminum Alloy

Brand: ADT Electronics
Model: K28

Product Brief

ADT Factory Direct Supply. Every cable is 100% fully inspected and power-on tested before shipment.This is PCIe 4.0 x4 to x8 flat extension cable.
Custom lengths available from 5cm to 100cm, deep cooperation is ADT Electronics

Model: K28

Product: PCIe 4.0 x4 to x8 Extension Cable

Cable Length: Custom 5cm ~ 100cm (custom order from 3cm to 1m available)

Standard: PCIe 4.0 Gen4, bandwidth up to 64Gbps

Cable Thickness: 1.3mm

Shielding: Metal layer shielding + advanced EMI conductive polymer shielding, flat ribbon cable design

Cable Flexibility: Soft, bendable and foldable without affecting performance

Key Features

✅ High-speed 5th-gen shielded cable independently developed by ADTAdopts premium connectors, stable PCIe 4.0 x1 transmission up to 8Gbps at high frequency.

✅ Custom length & low impedance designCustom length from 3cm to 1m available. Low cable impedance, stable full-speed PCIe4.0 performance within 60cm.

✅ Differential signal via-free layoutNo parasitic capacitance and parasitic inductance that cause signal attenuation & interference. Eliminates CAF conductive anodic filament micro-short issues for long service life.

✅ High-frequency low-resistance PCBPCB uses high-Tg substrate with thickened 1oz copper foil. Gold-plated gold fingers with sufficient gold content for excellent conductivity, reducing crashes and audio distortion caused by oxidation and rising contact resistance.

✅ 3mm PCB aluminum reinforcement pad at solder jointsThick 3mm PCB aluminum gaskets protect soldering points. The assembly is sturdy, tensile-resistant, anti-interference, prevents wire breakage and pin detachment.

✅ Low-profile & widened PCB designLow-profile design avoids conflict with graphics cards; widened & lengthened PCB for easier installation and lower risk of damage.

FAQQ: What about the cable quality? Does it have shielding?

A: It comes with metal layer shielding plus advanced EMI conductive polymer shielding, flat ribbon cable construction.
The cable is fully covered by conductive polymer for EMI suppression. It blocks incoming and outgoing electromagnetic radiation, minimizes interference and performance degradation while reducing the weight of the flat cable.

Q: How thick is the cable? Is it flexible? Can it be bent?

A: Cable thickness is only 1.3mm, the cable is relatively soft. It can be bent and folded without affecting normal use.

Important Precaution & Purchase Notice

1. Correct orientation required for insertion: Do NOT reverse or misalign the connector to avoid burning your equipment. Hold the device socket steady while plugging in. Excessive force may break socket pins. Do not bend or pull the cable within 2cm of the soldering joints on both ends.
2. Motherboards and hardware have different signal driving capabilities. Our internal test results may differ from your test environment. Signal loss always exists when using extension cables. If you require absolutely perfect signal performance, please do not purchase.

3. Graphics cards and motherboards are electronic devices prone to aging and oxidation over time. Using extension cables will further reduce stability.
   

4. Not compatible with equipment older than 4 years. Do not purchase if your hardware exceeds 4 years old.

5. This item is for product engineers only, intended for hardware testing purposes. Do not purchase for other applications.