Best Expander Modules for Professional Systems 2026
Perfect expander modules for professional-systems - easy to play and learn on
Last updated: January 14, 2026 • Next update: January 21, 2026
#1
⭐
4.5/5
(38 reviews)
Sound:
9/10
Build:
10/10
Value:
8/10
Squarp Instruments xp32
Professional Systems
Complex Setups
Extended Control
Key Feature:
• Space-efficient system growth
✓ PROS
- • Space-efficient system growth
- • Expand capabilities of main modules
✗ CONS
- • Requires specific main module
- • Limited standalone functionality
Squarp Instruments xp32Eurorack ModuleExpander for Hermod+ sequencer Art.#577702# (not included)Extends Hermod+ with 32...
⭐
4.5/5
(38 reviews)
Sound:
9/10
Build:
10/10
Value:
8/10
Art. 618806
$637
#2
⭐
4.7/5
(36 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
XAOC Devices Bohumin
by
XAOC Devices
System Expansion
Extended Control
Modular Growth
Key Feature:
• Maintain consistent sound character
✓ PROS
- • Often cost-effective expansion
- • Maintain consistent sound character
✗ CONS
- • Documentation may be scattered
- • Limited standalone functionality
XAOC Devices BohuminEurorack moduleExpander for XAOC Devices Ostrawa (Art.#567989#)Expands Ostrawa with a second stereo...
⭐
4.7/5
(36 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Art. 567990
$285
#3
⭐
4.8/5
(20 reviews)
Sound:
9/10
Build:
8/10
Value:
9/10
Der Mann mit der Maschine P10 Controller
Professional Systems
Complex Setups
System Expansion
Key Feature:
• Expand capabilities of main modules
✓ PROS
- • Space-efficient system growth
- • Maintain consistent sound character
✗ CONS
- • Requires specific main module
- • May become obsolete if main module changes
Der Mann mit der Maschine P10 ControllerEurorack ModuleExpands Droid Master (Art. 542913not included) by 2 large and 8...
⭐
4.8/5
(20 reviews)
Sound:
9/10
Build:
8/10
Value:
9/10
Art. 542955
$113
#4
⭐
4.8/5
(42 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Der Mann mit der Maschine P2B8 Controller
Modular Growth
Professional Systems
System Expansion
Key Feature:
• Maintain consistent sound character
✓ PROS
- • Expand capabilities of main modules
- • Add functionality without redundancy
✗ CONS
- • May become obsolete if main module changes
- • Can create dependency chains
Der Mann mit der Maschine P2B8 ControllerEurorack ModuleExpands Droid Master (art. #542913#not included) by 2...
⭐
4.8/5
(42 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Art. 542971
$119
#5
⭐
4.5/5
(55 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Vermona Modular MEX3
Complex Setups
Modular Growth
Additional Outputs
Key Feature:
• Space-efficient system growth
✓ PROS
- • Space-efficient system growth
- • Often cost-effective expansion
✗ CONS
- • May become obsolete if main module changes
- • Documentation may be scattered
Vermona Modular MEX3Eurorack ModuleMIDI expander for meloDICER (Art. #495494#not included)MIDI output of the meloDICER...
⭐
4.5/5
(55 reviews)
Sound:
7/10
Build:
7/10
Value:
7/10
Art. 583742
$197
#6
⭐
4.7/5
(19 reviews)
Sound:
9/10
Build:
9/10
Value:
8/10
Der Mann mit der Maschine S10 Controller
Modular Growth
Complex Setups
Professional Systems
Key Feature:
• Expand capabilities of main modules
✓ PROS
- • Add functionality without redundancy
- • Space-efficient system growth
✗ CONS
- • Requires specific main module
- • Limited standalone functionality
Der Mann mit der Maschine S10 ControllerEurorack ModuleExpands the Droid Master (Art.#542913#) by two eight-position...
⭐
4.7/5
(19 reviews)
Sound:
9/10
Build:
9/10
Value:
8/10
Art. 555093
$153
#7
⭐
4.9/5
(47 reviews)
Sound:
7/10
Build:
9/10
Value:
8/10
Der Mann mit der Maschine P2B8 Controller Yellow
System Expansion
Modular Growth
Professional Systems
Key Feature:
• Maintain consistent sound character
✓ PROS
- • Add functionality without redundancy
- • Maintain consistent sound character
✗ CONS
- • Documentation may be scattered
- • Limited standalone functionality
Der Mann mit der Maschine P2B8 Controller YellowEurorack ModuleExpands Droid Master (art. #542913#not included) by 2...
⭐
4.9/5
(47 reviews)
Sound:
7/10
Build:
9/10
Value:
8/10
Art. 542975
$142
#8
⭐
4.7/5
(43 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
XAOC Devices Rostock
by
XAOC Devices
Modular Growth
Additional Outputs
Professional Systems
Key Feature:
• Often cost-effective expansion
✓ PROS
- • Add functionality without redundancy
- • Expand capabilities of main modules
✗ CONS
- • Can create dependency chains
- • May become obsolete if main module changes
XAOC Devices RostockEurorack ModuleBinary Data PipelinePart of the Leibniz subsystem (can be combined with Drezno and...
⭐
4.7/5
(43 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
Art. 567991
$284
#9
⭐
4.4/5
(18 reviews)
Sound:
8/10
Build:
9/10
Value:
9/10
Der Mann mit der Maschine P2B8 Controller Red
Complex Setups
Modular Growth
System Expansion
Key Feature:
• Expand capabilities of main modules
✓ PROS
- • Expand capabilities of main modules
- • Space-efficient system growth
✗ CONS
- • May become obsolete if main module changes
- • Limited standalone functionality
Der Mann mit der Maschine P2B8 Controller RedEurorack ModuleExpands Droid Master (art. #542913#not included) by 2...
⭐
4.4/5
(18 reviews)
Sound:
8/10
Build:
9/10
Value:
9/10
Art. 542974
$139
#10
⭐
4.9/5
(40 reviews)
Sound:
8/10
Build:
6/10
Value:
8/10
XAOC Devices Ustka
by
XAOC Devices
Extended Control
Additional Outputs
Complex Setups
Key Feature:
• Space-efficient system growth
✓ PROS
- • Add functionality without redundancy
- • Maintain consistent sound character
✗ CONS
- • May become obsolete if main module changes
- • Can create dependency chains
XAOC Devices UstkaEurorack ModuleExpander for XAOC Devices Ostrawa (Art.#567989#)Expands each Ostrawa channel by a...
⭐
4.9/5
(40 reviews)
Sound:
8/10
Build:
6/10
Value:
8/10
Art. 597237
$72
#11
⭐
4.4/5
(23 reviews)
Sound:
8/10
Build:
9/10
Value:
8/10
XAOC Devices Arad
by
XAOC Devices
Professional Systems
Complex Setups
Modular Growth
Key Feature:
• Often cost-effective expansion
✓ PROS
- • Often cost-effective expansion
- • Space-efficient system growth
✗ CONS
- • Limited standalone functionality
- • Can create dependency chains
XAOC Devices AradEurorack ModuleExpander for XAOC devices Oradea (Art. #617684#not included)Expands each channel of...
⭐
4.4/5
(23 reviews)
Sound:
8/10
Build:
9/10
Value:
8/10
Art. 617685
$131
#12
⭐
5.0/5
(4 reviews)
Sound:
8/10
Build:
8/10
Value:
8/10
XAOC Devices Gera
by
XAOC Devices
Extended Control
Modular Growth
Complex Setups
Key Feature:
• Maintain consistent sound character
✓ PROS
- • Expand capabilities of main modules
- • Space-efficient system growth
✗ CONS
- • Limited standalone functionality
- • Requires specific main module
XAOC Devices GeraEurorack ModuleBinary Product CommanderExtension module for Leibniz SubsystemsApplies AND logic...
⭐
5.0/5
(4 reviews)
Sound:
8/10
Build:
8/10
Value:
8/10
Art. 554824
$171
#13
⭐
4.6/5
(46 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
4ms MetaAIO
by
4ms
Additional Outputs
System Expansion
Modular Growth
Key Feature:
• Often cost-effective expansion
✓ PROS
- • Often cost-effective expansion
- • Expand capabilities of main modules
✗ CONS
- • Limited standalone functionality
- • Documentation may be scattered
4ms MetaAIOEurorack ModuleAudio Expander for 4ms Meta Module (Art. #597515#)Expands the Meta Module with 6 CV/audio...
⭐
4.6/5
(46 reviews)
Sound:
7/10
Build:
7/10
Value:
9/10
Art. 613128
$197
#14
⭐
5.0/5
(15 reviews)
Sound:
9/10
Build:
9/10
Value:
9/10
XAOC Devices Lipsk II
by
XAOC Devices
System Expansion
Extended Control
Professional Systems
Key Feature:
• Add functionality without redundancy
✓ PROS
- • Expand capabilities of main modules
- • Often cost-effective expansion
✗ CONS
- • Documentation may be scattered
- • May become obsolete if main module changes
XAOC Devices Lipsk IIEurorack ModuleExpander for Drenzo moduleInversion of the individual bits produced by Drezno (or...
⭐
5.0/5
(15 reviews)
Sound:
9/10
Build:
9/10
Value:
9/10
Art. 588903
$174
#15
⭐
4.8/5
(10 reviews)
Sound:
8/10
Build:
8/10
Value:
7/10
Erica Synths Graphic Resonant FB Expander
by
Erica Synths
Professional Systems
Modular Growth
Complex Setups
Key Feature:
• Add functionality without redundancy
✓ PROS
- • Maintain consistent sound character
- • Expand capabilities of main modules
✗ CONS
- • Can create dependency chains
- • Requires specific main module
Erica Synths Graphic Resonant FB Expander, Eurorack Module, Extends the Graphic Resonant FB (Art. #599424# not...
⭐
4.8/5
(10 reviews)
Sound:
8/10
Build:
8/10
Value:
7/10
Art. 599425
$127
How to Choose the Best Expander Modules
Budget Planning
- • Under $200: Entry-level
- • $200-$500: Intermediate
- • $500-$1000: Advanced
- • $1000+: Professional
Quality Check
- • Sound clarity & tone
- • Build materials & finish
- • Hardware durability
- • Overall craftsmanship
Key Features
- • Your musical style
- • Skill level match
- • Intended use case
- • Brand reputation
Frequently Asked Questions
Key factors include build quality, sound characteristics, playability, brand reputation, warranty coverage, and value for money. Consider your musical style, skill level, and intended use to find the best match.
Budget depends on your needs and experience level. Beginners can find quality options for $200-500, intermediate players should consider $500-1500 range, while professionals often invest $1500+ for premium features.
Higher-priced expander modules typically offer better materials, craftsmanship, and performance. They're worth it if you're serious about music, perform regularly, or need professional-grade features.
Top brands combine quality, innovation, and reliability. We evaluate brands based on build quality, sound performance, durability, and customer satisfaction to recommend the best options for different budgets.
Both have advantages. Online offers better prices and selection, while stores allow hands-on testing. We recommend researching online first, then testing in stores if possible. Many online retailers offer excellent return policies.
