Boss BGK-3 GK Cable
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Manufacturer Information
Boss
https://www.roland.com
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Roland Central Europe N.V.
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The Cable Dedicated to Modern Serial GK Setups
The Boss BGK-3 (1 m) is designed to fully exploit the potential of BOSS systems equipped with the Serial GK interface, a digital protocol engineered for fast performance and ultra-stable response. Connection is made via 6.35mm TRS jack connectors (straight), replacing the older 13-pin interface: this provides simpler cabling integration into a pedalboard or rack while maintaining reliable transmission. Ideal for connecting a GK-5/GK-5B pickup to a GM-800 or VG-800 module, this cable emphasizes durability, signal clarity, and practicality both on stage and in the studio.
Technical specifications
| From connectivity | 6.35mm stereo male jack | Format | straight |
| Towards connectivity | 6.35mm stereo male jack | Color | Black |
| Category | Instrument cable | Length (m) | 1 m |
| Model | BOSS BGK-3 | Shielding | aluminum foil + tinned copper braid (maximum noise rejection) |
| Type | GK serial cable for Serial GK digital interface | Jacket | woven outer (durability, easy handling, tangle-free) |
| Length | 1 m | Included accessory | BOSS cable tie |
| Connectors | 6.35mm TRS jack straight | Declared compatibility | GM-800, VG-800, GK-5, GK-5B, GKC-AD, GKC-DA |
Questions frequently asked
Is the Boss BGK-3 compatible with the GM-800?
This model is specified as compatible with the GM-800, as well as with the VG-800. It supports Serial GK connection via two 6.35 mm TRS jacks.
Which cable should be used between a GK-5 and a VG-800?
The connection can be made with this 1 m Serial GK cable, compatible with GK-5 and GK-5B pickups. The straight connectors are 6.35 mm stereo jacks plated with 24-karat gold.
Does the BGK-3 replace a 13-pin GK cable?
The Serial GK interface uses 6.35 mm TRS jacks instead of the older 13-pin connection. This cable is intended exclusively for devices announced as Serial GK compatible.
What is the length of the Boss Serial GK cable?
Its length is 1 m. A BOSS cable tie is included.
Is the BGK-3 cable shielded?
The shielding combines an aluminum foil and a tinned copper braid to reject noise. The braided outer jacket facilitates handling and reduces tangling. It is compatible with GKC-AD and GKC-DA adapters.



