UPS Compatible With Mac: macOS Ships No Model List
Every UPS product page says the same thing about operating systems, which is roughly nothing: bundled software for Windows, sometimes a Mac installer, and no statement about whether the unit will show up in your Mac's settings at all. I went looking for the actual rule on the machine that runs this business, expecting the kind of vendor table I found behind macOS scanner support. There is no such table for UPSes. The entire decision is four lines in one launchd property list.
The rule is four usage pairs, and it names no brands
On this Mac mini (Mac16,10, M4, macOS 26.4.1 build 25E253) the file is /System/Library/LaunchDaemons/com.apple.ioupsd.plist. It launches /usr/libexec/ioupsd on demand, and the trigger is an IOKit match on HID devices:
LaunchEvents → com.apple.iokit.matching → "HIDDevice attached"
IOProviderClass = IOHIDDevice
DeviceUsagePairs = [
{ DeviceUsagePage = 132 } # 0x84 Power Page
{ DeviceUsagePage = 133 } # 0x85 Battery System Page
{ DeviceUsagePage = 65280, DeviceUsage = 20 } # 0xFF00 vendor-defined
{ DeviceUsagePage = 132, DeviceUsage = 6 } # 0x84 / 0x06
]No vendor ID, no product ID, no model string. The binary matches: strings -a /usr/libexec/ioupsd returns Generic UPS and com.apple.IOUPSPlugInServer, and zero strings beginning with APC, CyberPower, Eaton, Tripp, Belkin, Liebert, MGE, Powerware or Schneider. The whole power-source driver surface is two kexts, AppleCallbackPowerSource and IOHIDPowerSource, and the second one translates Apple's own battery keys rather than serving the UPS path.
So macOS support is a class question, not a model question. If your UPS publishes the USB HID Power Device usage pages, ioupsd starts and you get the UPS pane. If it does not, nothing happens, and there is no driver to install to change that.
Two details in that plist are worth flagging because I cannot explain them. The fourth pair, page 132 with usage 6, is a strict subset of the first pair, which already matches every usage on page 132, so as written it adds nothing. And in the spec, page 0x84 usage 0x06 is not a device at all. The 1997 USB Usage Tables for HID Power Devices assign 04 to UPS and 05 to PowerSupply, then mark 06-0F Reserved, and the current HID Usage Tables 1.6 still mark it reserved in section 30. Apple is matching a reserved usage. I have no theory for that beyond a placeholder nobody removed.
Apple's own compatibility statement is one sentence
The user guide page for macOS 26, Set when your Mac shuts down while using a UPS, is consistent with the plist. It sends you to System Settings, Energy, then UPS Options, and its entire statement about hardware is this: Some UPS devices run until their batteries are expended and then shut down. With other UPS devices, you can connect the device to the computer's USB port and set options for it using Energy Saver.
No brands, no models, no minimum firmware. That is the complete official answer to which UPS is compatible with a Mac.
How much of the market actually speaks that class
Apple will not tell you, so I built the census from the other side. Network UPS Tools maintains the only large public record of what protocol each UPS model speaks, because NUT has to pick a driver per model. I pulled its source of truth, data/driver.list.in from the project's master branch, on 2026-09-25: 20,526 bytes, 1,712 lines. Dropping comments and blank lines and keeping rows with the full six quoted fields gives 1,468 entries, of which 1,431 are UPSes, spread across 185 manufacturers. NUT's generic driver for the class macOS reads is usbhid-ups, and its manual is explicit about the scope: usbhid-ups brings USB/HID UPS monitoring to NUT on all platforms supporting USB through libusb. It should detect any UPS that uses the HID Power Device Class
.
| Slice of the NUT UPS census | Rows | Share of 1,431 |
|---|---|---|
| usbhid-ups (the HID Power Device class) | 338 | 23.6% |
| blazer_ser (vendor serial protocol) | 165 | 11.5% |
| blazer_usb | 125 | 8.7% |
| nutdrv_qx | 122 | 8.5% |
| nhs_ser | 109 | 7.6% |
| mge-shut | 80 | 5.6% |
| snmp-ups (network management card) | 67 | 4.7% |
Under a quarter of the catalogue rides the class that macOS matches on, and the concentration by brand is sharper still: only 31 of the 185 manufacturers have even one usbhid-ups row. Tripp Lite accounts for 116 of the 338, then MGE UPS SYSTEMS at 40, Cyber Power Systems at 33, Eaton at 24 and APC at 22. On the other side, some large listings have no HID row at all, including NHS Sistemas Eletronicos with 109 models, Riello with 52, Meta System with 44 and Atlantis Land with 33. A Linux box copes with that by loading a different driver. A Mac has no such move.
Three limits on this census, because they change how much weight it carries. NUT's list is community-maintained and incomplete, so absence is not evidence of anything. Rows are model families rather than SKUs, with entries as broad as Back-UPS (USB). And a NUT driver assignment describes the protocol, not a macOS test result, so treat the 23.6% as a proxy for how much of the market speaks the right language rather than a pass rate.
What owners report when the class is wrong
The failure mode the plist predicts is a UPS that enumerates as something other than a HID power device, and that is exactly what shows up in the threads. In an Apple Support Community thread from October 2023, a Mac Studio owner reported that an APC Easy UPS On-Line was neither showing under Energy Saver in Settings or System Info under Power as a UPS
, and noted that the USB tree listed it as a Miscellaneous Device from Exar Corporation. Exar makes USB-to-serial bridge chips. That unit is presenting a serial port, not usage page 0x84, so ioupsd is never triggered. Same thread, nine months later, another owner said Sonoma still doesn't recognize the UPS in the Battery menus
with an APC Back-UPS 700 Pro. Replies from three other owners in the same thread report their APC units showing up normally, which is the point: the brand is not the variable.
An earlier thread about an njoy 850L ends the same way, and the most useful reply was blunt about the prerequisite: You are not doing anything wrong. As far as that Mac is concerned, the UPS is simply not present
, because since the device does not appear in the USB device tree, nothing is going to happen
. In a 2022 thread from a Mac mini owner on Monterey, the top reply states the requirement plainly: you need a UPS with a USB cable attached to the Mac, or it will shutdown abruptly and not safely
.
Vendor software is a thinner fallback than the box implies. APC's PowerChute Serial Shutdown targets Windows and Linux, and for Macs Schneider publishes a separate document titled How to configure native shutdown on Macintosh OS X communicating with Back-UPS, which hands the job back to the operating system. CyberPower does ship a Mac build, with its PowerPanel Business 4.12.2 Mac page listing Supported Operating Systems: macOS 15 and 26
. Neither path rescues a unit that never presents the HID class.
What I would buy
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I own no UPS. This rig has never had one attached, which I can show rather than assert: pmset -g ups prints nothing, ioreg -rc IOUPSDevice | grep -c '+-o' returns 0, and System Information reports UPS Installed: No. Everything above is a reading of macOS plus a normalized vendor census, so treat the product notes as spec and community reporting rather than a usage report.
The buying rule that falls out is narrow and checkable. Confirm the unit has a USB data port rather than only USB charging ports, then confirm the model family appears in NUT under usbhid-ups, then plan to verify detection on day one by opening Energy and looking for UPS Options. If the pane never appears, the answer on macOS is to return the unit, because there is no driver to add.
By that rule the CyberPower CP1500PFCLCD is the cleanest example I can point at: NUT carries it as a three-star usbhid-ups entry, CyberPower ships a current Mac build of its own software, and the brand has 33 HID-class rows behind it. The APC BE600M1 is the unit I shortlisted in July when I sized a UPS for this home server, and I am deliberately not claiming macOS detection for it, because that exact model has no row in the NUT list either way. If you want the brand-level comparison behind those two names, I wrote up APC versus CyberPower separately, and the reason a UPS matters here at all is in how this Mac mini restarts after a power failure and what happens when it shuts down under no load.
Sources and method: the macOS side was read on 2026-09-25 on the Mac16,10 (M4) running macOS 26.4.1 build 25E253 that publishes this blog, using plutil -p on com.apple.ioupsd.plist, strings -a on /usr/libexec/ioupsd, kmutil inspect and kmutil showloaded, plus pmset, ioreg and system_profiler. The census is NUT's data/driver.list.in fetched from the master branch the same day (20,526 bytes, 1,712 lines, 1,468 parsed rows) and counted with a script that keeps rows carrying six quoted fields; because the list is community-maintained and organized by model family, the shares are a protocol proxy and not a macOS compatibility rate. Usage page definitions come from the USB-IF documents linked above, read with pdftotext. I own none of the products named, the Amazon listings were checked for availability on 2026-09-25 and no prices are quoted here, and the CyberPower software support line is quoted from the vendor product page.