Comparison · direct decision support
ComMarker B4 20W vs ComMarker B6 MOPA 20W vs Monport GA 30W MOPA
ComMarker B4 20W vs ComMarker B6 MOPA 20W vs Monport GA 30W MOPA: compare work area, software, dated configurations and setup requirements.
Buying decision
What should drive your choice?
ComMarker B4 20W
B4 20W: 20 W 1064 nm fiber, 110 × 110 mm work area. Reference configuration: 20 W · 110 × 110 mm · US/USD. Checked 2026-10-12; taxes, shipping and stock require seller confirmation. Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended.
ComMarker B6 MOPA 20W
B6 MOPA 20W: 20 W JPT MOPA fiber, 150 × 150 mm work area. Reference configuration: 20 W Basic · 150 × 150 mm · US/USD. Checked 2026-10-12; taxes, shipping and stock require seller confirmation. Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended.
Monport GA 30W MOPA
GA 30W MOPA: 30 W MOPA fiber, 175 × 175 mm work area. Reference configuration: 30 W MOPA · UK/GBP. Checked 2026-10-12; taxes, shipping and stock require seller confirmation. Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended.
Check the whole bundle
Prices are for the stated configurations, not equivalent complete setups. Do not compare currencies without an explicit conversion.
Quick decision
Where each machine fits
ComMarker
Choose B4 20W if…
- B4 20W: 20 W 1064 nm fiber, 110 × 110 mm work area.
Watch for
- Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended.
ComMarker
Choose B6 MOPA 20W if…
- B6 MOPA 20W: 20 W JPT MOPA fiber, 150 × 150 mm work area.
Watch for
- Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended.
Monport
Choose GA 30W MOPA if…
- GA 30W MOPA: 30 W MOPA fiber, 175 × 175 mm work area.
Watch for
- Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended.
- Manufacturer listing currently shows sold out; marketplace searches do not confirm stock.
Side by side
Verified differences
Swipe horizontally to compare both machines →
| Decision point | B4 20W | B6 MOPA 20W | GA 30W MOPA |
|---|---|---|---|
| Reference price | $1,399.00 | $2,599.00 | £2,399.99 |
| Reference configuration | Reference configuration: 20 W · 110 × 110 mm · US/USD. Checked 2026-10-12; taxes, shipping and stock require seller confirmation. | Reference configuration: 20 W Basic · 150 × 150 mm · US/USD. Checked 2026-10-12; taxes, shipping and stock require seller confirmation. | Reference configuration: 30 W MOPA · UK/GBP. Checked 2026-10-12; taxes, shipping and stock require seller confirmation. |
| Estimated setup allowance | $300–$1,500 | $300–$1,500 | $300–$1,500 |
| Laser type | fiber laser | fiber laser | fiber laser |
| Laser output | 20 W 1064 nm fiber | 20 W JPT MOPA fiber | 30 W MOPA fiber |
| Work area | 110 mm × 110 mm | 150 mm × 150 mm | 175 mm × 175 mm |
| Fully enclosed | No | No | No |
| Camera | Not verified | Not verified | Not verified |
| Autofocus | No | Yes | Yes |
| Rotary support | Yes | Yes | Not verified |
| Materials | stainless steel, aluminum, brass | stainless steel, aluminum, brass | stainless steel, aluminum, brass |
| Software | LightBurn, EZCAD2 | LightBurn, EZCAD2 | LightBurn, EZCAD2 |
| Platforms | Windows, macOS (LightBurn) | Windows, macOS (LightBurn) | Windows, macOS (LightBurn) |
| Ventilation | required | required | required |
| Warranty check | Terms vary by seller and market; confirm laser-source, tube and consumable coverage separately. | Terms vary by seller and market; confirm laser-source, tube and consumable coverage separately. | Terms vary by seller and market; confirm laser-source, tube and consumable coverage separately. |
| Best suited to | metal marking, personalization, small-batch production | metal marking, color metal marking, personalization, small-batch production | metal marking, color metal marking, personalization, small-batch production |
| Strongest case | B4 20W: 20 W 1064 nm fiber, 110 × 110 mm work area. | B6 MOPA 20W: 20 W JPT MOPA fiber, 150 × 150 mm work area. | GA 30W MOPA: 30 W MOPA fiber, 175 × 175 mm work area. |
| Main limitation | Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended. | Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended. | Extraction is required. Verify the exact material, guarding and fire precautions; never leave a laser unattended. |
| Record checked | 2026-10-12 | 2026-10-12 | 2026-10-12 |
Reference prices exclude some accessories, extraction and market-specific costs. Published accuracy and resolution are manufacturer figures, not our test results.
Market check
Buying options by machine
Evidence log
Sources used
- ComMarker B4 20W: ComMarker B4 20W: specifications and reference configurationofficial · checked 2026-10-12
- ComMarker B4 20W: B4 manual: focusing and lens configurationsofficial · checked 2026-10-12
- ComMarker B4 20W: TechRadar B4 review; check the tested power and lensindependent · checked 2026-10-12
- ComMarker B6 MOPA 20W: ComMarker B6 MOPA 20W: specifications and reference configurationofficial · checked 2026-10-12
- ComMarker B6 MOPA 20W: TechRadar B6 MOPA review; field lens differs by bundleindependent · checked 2026-10-12
- Monport GA 30W MOPA: Monport GA 30W MOPA: specifications and reference configurationofficial · checked 2026-10-12
- Monport GA 30W MOPA: Owner-reported Monport GA 30W MOPA setup; not a controlled reviewindependent · checked 2026-10-12
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