This article covers エレコム HDMI ケーブル 2m ウルトラハイスピード 4K(120Hz) 8K(60Hz) 【Ultra High Speed HDMI Cable認証品】 48Gbps 超高速 テレビ・パソコン・ゲーム機などに 7680×4320 eARC 黒 ECDH-HD21E20BK (× 3).

Overview

The ELECOM ECDH-HD21E20BK is a 2-meter Ultra High Speed HDMI cable sold in a 3-pack, certified by the HDMI Licensing Administrator. With a bandwidth of 48 Gbps, it supports resolutions up to 8K at 60Hz and 4K at 240Hz, making it ideal for next-gen gaming consoles, high-end PCs, and home theater systems. It also features Dolby Vision, eARC, and HEC (100Mbps Ethernet). The 3-pack offers excellent value for users who need to upgrade multiple devices simultaneously.

Connectivity & Compatibility

Both ends feature standard HDMI Type A connectors, compatible with TVs, monitors, projectors, game consoles, PCs, and AV receivers. Fully supports HDMI 2.1 features including VRR, ALLM, QMS, and eARC. The cable is certified for Ultra High Speed HDMI with Ethernet, ensuring reliable performance at full bandwidth. eARC enables lossless audio transmission (Dolby Atmos, DTS:X) from a TV to a soundbar or AVR over a single cable. HEC provides 100Mbps Ethernet over HDMI, though dedicated LAN cabling is recommended for stable networking.

Product Info

Released around 2023, this cable sits in the mid-to-high-end segment, offering certified Ultra High Speed performance at a competitive price point. The 3-pack typically retails for around ¥3,500 (approx. $25 USD), making it one of the most cost-effective ways to equip multiple HDMI 2.1 devices. The manufacturer provides a 1-year warranty (confirm with retailer). Accessories are limited to the three cables in a simple retail package. It is widely available on and other online retailers.

Best Use Cases

Gamers with PS5, Xbox Series X, or high-end gaming PCs: Unlock full HDMI 2.1 features like 4K/120Hz or 8K/60Hz with VRR and ALLM. The 2m length is ideal for desktop setups where the console or PC is close to the display. Not suitable for long cable runs. Home theater enthusiasts: Use eARC to connect a TV to a soundbar or AVR for lossless audio. The 3-pack allows you to upgrade the TV-to-soundbar connection and still have spare cables for other components. Users with multiple HDMI 2.1 devices: If you have a TV, monitor, and projector all needing high-bandwidth connections, this 3-pack provides a uniform, certified solution at a lower per-cable cost than buying singles. Who should skip: If you only need a single cable or require lengths over 3 meters, consider a different option. Also, if your devices are limited to HDMI 2.0, a cheaper High Speed cable will suffice.

Product Disclosure (Amazon)

  • Manufacturer: エレコム(ELECOM)
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0H8F8DDTF
  • Note: This article covers a manufacturer-made product based on Amazon listing details.