# Boss PSA-120S A/C adapter

The Boss PSA-120S is the recommended power supply for products including all new BOSS Compact and Twin pedals, ME-50/-20/-20B Multi-effects, the DB-66/-88/-90 metronomes, DR-Series drum machines, FC-Series foot controllers, MC-202, SH-101, SP-202, TR-626, and all TU-Series tuners.

Compatible with a wide range of Boss products , from Boss single and multi-effects pedals, such as the ME-20, ME-50, RC-20XL, etc. Save your batteries for when you _really_need them, and use the Boss PSA-120S AC adapter, whenever wall power is readily available!

-   New generation power supply for today’s digital instruments
-   500 mA of current to easily power multiple pedals, even digital ones
-   Power cable length is increased to almost 10 feet
-   LED indicator for quick visual verification of on/off status
-   New design which does not cover adjacent power outlets

## Details

- **Price:** 39.99 USD
- **Vendor:** Roland Corporation
- **Tags:** Boss, Discount eligible, Electronics, Gear & Accessories, Pedals & Effects

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.99 USD | In stock |

## Images

- Boss PSA-120S A/C adapter - Electric Violin Shop
- Boss PSA-120S A/C adapter - Electric Violin Shop

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> Source: [Electric Violin Shop](https://electricviolinshop.com/products/a-c-adaptor-boss)
> Updated: 2026-07-17