This article covers Monoprice AV 8K アクティブHDMIケーブル.

Overview

The Monoprice AV 8K Active HDMI Cable (65ft / 20m) is part of the SlimRun series, combining fiber optic and copper in an active optical cable (AOC) design. It supports the full 48Gbps bandwidth of HDMI 2.1, enabling 8K/60Hz or 4K/120Hz video transmission over a remarkable 20-meter distance. This cable solves a fundamental problem: passive copper HDMI cables suffer from signal degradation beyond a few meters, especially at the high data rates required for 8K. By using active electronics and optical fibers, the Monoprice AOC maintains signal integrity over the full 20m length, something no passive cable can achieve.

Connectivity & Compatibility

The cable features standard HDMI Type-A male connectors on both ends. It works with any device that has an HDMI output: TVs, projectors, monitors, game consoles (Xbox Series X/S, PS5), PCs, Blu-ray players, and more. Full HDMI 2.1 feature support includes: 8K/60Hz (7680×4320) 4K/120Hz eARC (Enhanced Audio Return Channel) HDR10 and Dolby Vision Variable Refresh Rate (VRR) Auto Low Latency Mode (ALLM) Important: Because this is an active cable, it has a defined signal direction. The connectors are labeled "Source" and "Display" — connect the Source end to your playback device and the Display end to your TV or monitor. Reversing them will result in no picture.

Product Info

The Monoprice AV 8K Active HDMI Cable launched around 2022 and remains available through and other retailers. The 20m model typically sells for around ¥30,000–¥35,000, which is competitive for a certified HDMI 2.1 active cable of this length. Market positioning is firmly in the high-end/professional tier. Very few cables can deliver full 48Gbps HDMI 2.1 bandwidth at 20 meters, making this a specialized tool for custom installations, home theaters, and commercial AV setups. It is overkill for a simple TV-to-console connection at close range. Warranty is Monoprice's standard 1-year limited warranty. The package includes only the cable itself — no adapters or accessories.

Best Use Cases

Home theater enthusiasts running long in-wall or ceiling routes from an AV receiver to a projector. The 20m length provides plenty of slack for complex installations. Commercial AV integrators setting up digital signage, trade show displays, or conference room systems where the source equipment must be placed far from the screen. * Gamers with a PC in one room and a TV in another who want 4K/120Hz HDR gaming without compression or signal dropouts. However, for most living-room setups, a 3–5m passive cable is more practical and far cheaper. This cable is not recommended for users who simply need to connect a console to a nearby TV — a standard 2m passive HDMI 2.1 cable costs a fraction of the price and works perfectly for that scenario.

Product Disclosure (Amazon)

  • Manufacturer: Monoprice
  • Seller: サムショップ
  • Fulfilled by: サムショップ
  • ASIN: B09SWBBTN1
  • Note: This article covers a manufacturer-made product based on Amazon listing details.