This article covers バッファロー BUFFALO ツメの折れないLANケーブル モデム用 カテゴリ6a ストレート フラットタイプ ブラック BSLS6AFU20BK (× 5).

Overview

The BUFFALO BSLS6AFU20BK is a Cat6a Ethernet cable designed specifically for modem connections, sold in a convenient 5-pack. Its standout feature is the unbreakable tab on the RJ-45 connector, which prevents the common frustration of snapped clips when plugging and unplugging in tight spaces. With a bandwidth rating of 500MHz, this cable meets Cat6a specifications and supports 10GBASE-T networks, making it future-proof for high-speed wired connections. The flat cable design helps with neat routing along walls or under carpets. This 5-pack configuration is ideal for households or small offices that need to connect multiple devices—such as modems, TVs, recorders, and game consoles—simultaneously.

Connectivity & Compatibility

The cable uses standard RJ-45 connectors with a straight-through wiring scheme. It is compatible with ADSL modems, CATV modems, FTTH optical network units, digital TVs, hard disk recorders with RJ-45 ports, and ISDN terminals (up to 30m). It supports a wide range of Ethernet categories: Augmented Category 6, Category 6, Enhanced Category 5, Category 5, and Category 3. This ensures backward compatibility with older networking equipment while delivering full Cat6a performance. Note that the cable length is only 20cm (0.2m), so it is intended for connecting devices that are placed very close together—typically a modem directly next to a wall outlet or a router.

Product Info

The BSLS6AFU20BK was released around 2024 and is available through BUFFALO's official channels and major retailers like . The 5-pack is priced around ¥4,600–¥4,800, which works out to roughly ¥920–¥960 per cable. BUFFALO offers a standard 1-year warranty. The package includes only the cables themselves—no additional accessories. In terms of market positioning, this product sits at the entry-to-mid level. It offers a practical, durable design (unbreakable tab) with Cat6a performance, making it a solid choice for users who want reliable modem connections without overspending.

Best Use Cases

Users who frequently plug/unplug modem cables: The unbreakable tab design eliminates the risk of snapping the connector clip, which is especially useful in rental apartments or setups where cable routing changes often. Households with multiple wired devices: The 5-pack allows you to connect a modem, TV, recorder, and game console all at once, without buying individual cables separately. * Those who prefer tidy cable management: The flat cable profile makes it easy to run along baseboards or under rugs, keeping the area around your networking gear clean. If you only need one cable or already have a stock of Cat6a cables, the 5-pack may be more than necessary. Also, the 20cm length is very short—if your devices are farther apart, look for longer cables.

Product Disclosure (Amazon)

  • Manufacturer: バッファロー
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0H8DZQ9NX
  • Note: This article covers a manufacturer-made product based on Amazon listing details.