what is the output on this adapter? (volts and amps)

According to the description: 9V, center negative, 2A (2000 millamps) max. 18 watts. (9v x 2a = 18w) The other answers here are wrong if the product description is correct (and they don't even agree). The original PSB-1U had the specs I just listed.

What is the cable length? Thanks in advance.

from the outlet plug to the transformer box is approx 3 feet from the transformer box to the outlet on my keyboard is about 6 feet with an overall length of 9 feet

there is no place on my FR7 that would accommodate that adapter plug. Please help

The FR-7 is powered by the foot pedal that comes with it - this attaches to the FR-7 using the included 19-pin cable. You can also use the battery pack for powering the FR-7, and this is charged using the foot pedal also.

Will it work with HP 137 R?

I am sorry, I really do not know it it would work or not

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Roland Electronic Keyboard Power Supply (PSB-120)

Roland Electronic Keyboard Power Supply (PSB-120)

Product ID: 3525441

Details

Amperage
2000 Milliamps
Brand
Roland
Color
Clear
Compatible Devices
VG-99 GT-10
Compatible Phone Models
VG-99 GT-10
Connector Type
Barrel

⚡9V DC output voltage

🌍100-240V universal input

🔌2000mA high current output

74300CFA

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Description

⚡ Stay powered, stay ahead — the ultimate keyboard companion!

TRUSTED REPLACEMENT - Direct PSB-1U equivalent, replacing multiple legacy adapters to keep your gear future-proof.
POWER YOUR CREATIVITY - Reliable 9V DC output keeps your Roland devices energized without interruption.
PLUG PLAY SIMPLICITY - Compatible with multiple Roland models and easy wall-mount design for clutter-free setups.
AMP UP YOUR PERFORMANCE - Robust 2000mA current ensures stable power for seamless musical flow.
GLOBAL READY TRAVEL FRIENDLY - Wide 100-240V input voltage supports worldwide use—perfect for the on-the-go pro.

The Roland PSB-120 is a high-performance AC power adapter delivering 9V DC at 2000mA, compatible with a range of Roland keyboards and devices. Featuring a universal 100-240V input, it supports global use and replaces multiple older models, ensuring reliable, travel-ready power for professional musicians and managers who demand uninterrupted creativity.

Specifications

ASIN	B001OAGQ80
Additional Features	Travel
Amperage	2000 Milliamps
Best Sellers Rank	#8,448 in Musical Instruments ( See Top 100 in Musical Instruments ) #66 in Keyboard Power Supplies
Brand	Roland
Built-In Media	AC power adapter with cord
Color	Clear
Compatible Devices	VG-99, GT-10
Compatible Phone Models	VG-99, GT-10
Compatible Power Plug Type	Type A - 2 pin (North American)
Connectivity Technology	AC Power Cable
Connector Type	Barrel Connector
Current	DC
Current Rating	2 Amps
Customer Package Type	FFP
Customer Reviews	4.7 4.7 out of 5 stars (671)
Enclosure Material	Plastic
Form Factor	Corded Adapter
Frequency Range	60 hertz
Global Trade Identification Number	00761294403471
Input Voltage	240 Volts (AC)
Item Type Name	Electronic Keyboard Power Supply
Item Weight	9.92 ounces
Main Power Connector Type	2 Pin
Manufacturer	Roland
Mfr Part Number	PSB-120
Model Name	PSB-120
Model Number	PSB-120
Mounting Type	Wall Mount
Number of Items	1
Output Current	2000 Milliamps
Output Voltage	9 Volts
Portable	Yes
Power Plug	Type A - 2 pin (North American)
Power Source	Corded Electric
Specification Met	ACI
UPC	761294403471
Unit Count	1.0 Count
Voltage	9 Volts
Warranty Description	See manufacturer's website for details
Wattage	120 watts

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