Choose the feeder that is explicitly supported by your exact printer, then decide whether the ACE 2 Pro's drying and storage changes justify replacing a working ACE Pro. Do not buy an ACE 2 Pro merely to add four channels alongside a first-generation unit: Anycubic says those generations cannot operate together.
Source check: October 9, 2026. This is a researched comparison of manufacturer documentation, not a hands-on review. Our recommendations are interpretations of those specifications for the examples below. We have not measured print quality, reliability, noise, or speed. Global-store listings can select different regional plugs and bundles; confirm your delivery country and complete checkout total. We do not quote a current US purchase price here.

What changes between the two generations?
| Feature | ACE Pro | ACE 2 Pro |
|---|---|---|
| Maximum drying temperature | 55 °C | 65 °C |
| Environmental display | Temperature | Temperature and humidity |
| Sealed storage and active moisture control | Not listed as supported | Listed as supported |
| Mixed ACE generations on one printer | Not supported | Not supported |
| First purchasing check | Correct printer-specific version | Correct printer-specific accessory package |
The hardware comparison follows the ACE Pro specifications and ACE 2 Pro specifications. More features do not establish that a dry, compatible spool will produce a better-looking object. Identify the problem your current setup has before deciding an upgrade is necessary.
If you do not own an Anycubic printer, do not assume either device is a universal automated feeder. Look for explicit support for the intended machine, including the control workflow.
Start with the printer, not the word ACE
| Printer or situation | What the official listings establish | Buying implication |
|---|---|---|
| Kobra S1 | ACE Pro and ACE 2 Pro packages exist | Check which generation the quoted Combo includes |
| Kobra X | First-generation ACE Pro is unsupported | Do not buy a used ACE Pro for this printer |
| Kobra S1 Max | First-generation ACE Pro is unsupported | Select the supported second-generation setup |
| Existing first-generation system | Generations cannot be used together | Expansion and replacement are different purchases |
The exclusions are explicit in the Kobra X FAQ and S1 Max FAQ; S1 bundle documentation explains its two generations. This is a selected-model checklist, not a compatibility promise for every Kobra revision.
Record the full printer name, feeder label, current firmware, planned number of units, and selected connection kit. Give that information to the manufacturer if the listing does not make your exact combination clear.
A matching box may still need matching connection parts
Inspect the selected variant and the included-accessories table. A feeder sold for one printer group can include different connecting parts from the apparently similar package beside it. Check hubs, tubes, cables, mounting parts, and any required update instructions together.
The ACE Pro upgrade-kit listing is a useful naming warning: it is a printer-specific accessory listing, not evidence that an old ACE Pro becomes an ACE 2 Pro. Do not infer an electronics conversion or universal compatibility from the words upgrade kit.
For a used offer, request a photograph of the actual label and all included connections. Price missing parts before agreeing on value. A discounted feeder that needs an unavailable cable is not a complete setup, even when the seller says it powers on.
Check the spool and the filament separately
The ACE 2 Pro listing specifies 195–200 mm flange diameter, 60–68 mm spool width, and 3–6 mm flange thickness, and advises avoiding cardboard spools. Measure the actual spool rather than assuming a one-kilogram label defines its dimensions. Check our spool-compatibility guide before buying a bulk pack.
Next, check the material path. The S1 ACE 2 Pro Combo guidance says ordinary TPU 95A uses direct feeding, not that feeder. A material designed and labeled for ACE is a different compatibility question from an arbitrary flexible spool.
For example, a hypothetical 200 mm spool that is 75 mm wide exceeds the published width range by 7 mm. Its filament could be chemically suitable while the spool still fails the mechanical check. Solve both conditions; neither makes the other irrelevant.
Treat drying capability as one part of material preparation
Compare the filament maker's drying time and temperature with the device's supported settings. A higher maximum temperature only matters when it serves your actual grade and spool safely. It is not a reason to run every spool at the hottest setting.
Consider the workflow between prints too: whether opened spools stay loaded, how often the lid opens, and where unused colors are stored. A humidity reading describes the measured air at the sensor; it is not a direct measurement of water inside every part of a spool.
If your only need is drying an occasional spool for single-color prints, price a suitable separate dryer and storage arrangement as another option. Our dryer and dry-box comparison helps separate drying, storage, and automatic feeding rather than paying for all three by default.
Calculate expansion and replacement as separate plans
Suppose you own a working first-generation four-color setup and want eight colors on a printer that supports that configuration. One plan is a compatible first-generation expansion with all required parts. A second-generation replacement plan must include the complete supported arrangement; the existing feeder cannot be counted as four additional mixed-generation channels.
As a purely hypothetical budget, two replacement units at $250 each plus $40 of connection parts total $540. Selling old equipment for a net $100 would leave a $440 cost. Do not budget the sale until it is realistic, and do not treat these assumed amounts as current Anycubic prices.
Now compare that cost with the number of near-term files requiring more channels. If every planned job uses three colors, an eight-color upgrade solves no current constraint. More loaded colors can be convenient, but that convenience should be an explicit purchase reason.
Keep a fallback when changing the system
Before disconnecting working hardware, save the existing printer, feeder, and slicer settings. Read the installation and firmware instructions for the exact new combination. Avoid making the change immediately before a promised finished project.
After setup, begin with the manufacturer's checks and a small supported job. Confirm that the selected slots, displayed materials, and actual loaded spools agree. Establish ordinary feeding before relying on a long multicolor print or an automatic backup workflow.
Keep the original parts until the replacement is working and you understand any return requirements. This is a practical commissioning plan, not a guarantee that one generation will need more troubleshooting than the other.
Who should upgrade, keep, or skip?
- Investigate ACE 2 Pro: your printer requires it, or its documented drying and storage features solve a specific workflow problem.
- Keep a working ACE Pro: the printer supports it, your jobs fit its capabilities, and there is no recurring limitation to solve.
- Skip an automated feeder for now: most projects are single-color, or the desired material and spools lack a supported path.
Before checkout, get an unambiguous answer on the exact printer, generation, accessory variant, and color count. The link below opens Anycubic's store range, where you can select the matching device; it does not choose a compatible kit automatically.
For a wider comparison, browse Anycubic’s current printer range and apply the same size, material, workspace, and ownership checks.
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Browse Anycubic’s printer range (paid link)Sources & further reading
- Anycubic: first-generation ACE Pro specifications and model selector
- Anycubic: ACE 2 Pro specifications and included accessories
- Anycubic: Kobra X specifications and FAQ
- Anycubic: Kobra S1 Max specifications and compatibility FAQ
- Anycubic: Kobra S1 ACE 2 Pro Combo and generation differences
- Anycubic: ACE Pro upgrade kit for named printer models
Manufacturer guidance can change. Check the instructions for your exact printer, build surface, and filament.