ADT K23SF/K23SL/K23SH PCIe 4.0 X4 to X16 GPU Riser Cable Product Details1. Product OverviewThis is the original ADT (Erdate) fifth-generation high-performance PCIe 4.0 X4 to X16 GPU riser cable, factory direct sales with 100% full power-on inspection and testing before shipment. Designed for high-speed extension of mainstream PCIe 4.0 graphics cards, it supports stable operation of flagship GPUs such as RTX 3090 and RX 6800XT. Adopting self-developed fifth-generation shielded high-speed flat cable and professional high-frequency PCB technology, it achieves full-speed stable transmission of PCIe 4.0 Gen4 64Gbps bandwidth. The cable features ultra-low impedance, strong anti-interference ability and durable structure, with customized length service (5cm-100cm) available for engineering customization and in-depth cooperation.2. Core Product Advantages

• Fifth-Generation Custom Shielded High-Speed CableIndependently developed by ADT, equipped with high-precision connectors. Supports stable PCIe 4.0 X1 8Gbps high-frequency transmission. Adopts dual shielding of metal shielding layer + advanced EMI conductive polymer full coverage, which comprehensively isolates electromagnetic frequency interference, prevents signal emission and intrusion, effectively avoids signal attenuation and performance degradation, and realizes lightweight and high anti-interference performance of the flat cable.
• Full-Speed Stable Transmission with Ultra-Low ImpedanceUltra-low impedance cable design ensures zero-latency high-speed transmission. It can stably support full PCIe 4.0 Gen4 64Gbps bandwidth within 60cm length, perfectly matching the high-speed operation requirements of flagship graphics cards, no frame drop or bandwidth loss.
• Zero-Via Differential Signal DesignThe differential signal circuit adopts a no-via-hole design, completely eliminating parasitic capacitance and parasitic inductance caused by via holes. It avoids signal attenuation and transmission interference, effectively prevents CAF micro-short circuit phenomenon, and greatly extends the service life of the product for long-term stable operation.
• High-Frequency High-Durability PCB CraftMade of high-TG high-frequency low-resistance PCB material, with 1oz thickened copper layer and sufficient gold-plating on gold fingers. The excellent conductivity effectively reduces impedance rise and equipment crash/beep failure caused by oxidation and rust, ensuring long-term stable working performance.
• Reinforced Anti-Breakage StructureThe welding joints of cable and PCB are protected by 3mm thick PCB aluminum gaskets. The reinforced structure is tensile, anti-interference and drop-resistant, effectively solving the problems of wire breakage and pin falling off, making the product sturdy and durable.
• Optimized Low-Profile & Widened PCB DesignLow-profile PCB design avoids blocking graphics card installation; widened and lengthened board design optimizes installation tolerance, reduces installation damage rate, and is compatible with more chassis and motherboard installation environments.

3. Product SpecificationsItemSpecificationBrandADT (Erdate Electronics)ModelK23SF, K23SL, K23SHProduct TypePCIe 4.0 X4 to X16 GPU Riser Extension CableTransmission StandardPCIe 4.0 Gen4, Max 64Gbps BandwidthCompatible GPURTX 3090, RX 6800XT and all PCIe 4.0 mainstream graphics cardsCable Thickness1.3mm ultra-thin flat cableCable FeatureSoft and flexible, bendable and foldable, no impact on performanceShielding TechnologyMetal layer + EMI conductive polymer full coverage dual shieldingCustom Length Range5cm - 100cm (support customized length & in-depth cooperation)Stable Transmission LengthFull PCIe 4.0 speed stable within 60cm4. Product Features & Wiring PerformanceThe 1.3mm ultra-thin flat cable is soft and flexible, supporting arbitrary bending without internal wire damage or signal failure. Adopting dual shielding technology, it fully resists external electromagnetic interference and internal signal crosstalk, ensuring pure and stable high-speed signal transmission. The upgraded industrial-grade craft solves common problems of ordinary riser cables such as signal loss, short circuit, easy breakage and poor compatibility, suitable for professional PC m