Comet vs Comet Pro vs PiKVM V4: which remote KVM fits your recovery job?

The short comparison

These figures come from manufacturer pages read on 13 October 2026. This publication has not tested any of the three. Prices are listed prices or third-party reseller prices on that date; confirm checkout, tax, shipping and stock yourself.

Choose by where the computer sits and how you will reach it

Begin with the cable run. Comet has a gigabit Ethernet port and no listed Wi-Fi, so it suits a computer that already sits near a switch or router port. Comet Pro adds Wi-Fi 6 on both bands, and GL.iNet describes failover between Wi-Fi and Ethernet. That matters when the target machine is in a room with no wired drop. PiKVM V4 lists a 1 Gb Ethernet port, and its handbook covers an optional Wi-Fi antenna. The V4 Plus adds a Mini-PCIe slot meant for an LTE modem. That is a different kind of fallback, and it needs its own SIM and data plan. [1][2][6]

Then decide who runs the remote-access layer. GL.iNet offers a browser cloud path, an app, and Tailscale, and describes a self-hosted server option that needs a small Linux server. PiKVM's handbook lists only self-managed options: port forwarding, a reverse proxy, Tailscale VPN, Cloudflare tunnel or NetBird. If you do not want to run any of that, the GL.iNet cloud path is simpler. If you prefer that no vendor cloud is involved, both families let you avoid one. PiKVM assumes you will configure it yourself. [1][2][7]

Video and recovery features that matter more than headline resolution

GL.iNet lists 4K at 30 fps with 30 to 60 ms latency for the Comet models, and notes those figures come from tests on a local network. PiKVM lists 1920x1200 at 60 fps in its product table and 1080p at 60 fps in its descriptions; we report both because the page states both. For recovery work, the question is whether the device shows firmware setup, boot menus and installer screens on your exact computer and display output. Resolution comes second. [1][2][4]

Comet Pro adds an HD output for passthrough and a touchscreen for local status and Wi-Fi setup, with a 4-digit hardware screen lock. Its page also lists two-factor authentication; the base Comet page checked here does not mention it either way. The base Comet product page highlights remote file transfer and BIOS access. The PiKVM V4 handbook describes recovery by reflashing the microSD card, which needs physical access to the card. It says PiKVM cannot be bricked. Each of these changes what an on-site helper might have to do if something goes wrong. [1][2][6]

Power control: one row in the table, many checks in practice

Power control is where buyers most often over-assume. GL.iNet's Comet and Comet Pro pages describe built-in Wake-on-LAN and refer to an included ATX board. GL.iNet's KVM FAQ lists the ATX board and Fingerbot as sold separately and not compatible with Comet Q. Treat that as unresolved and confirm what is in the box at checkout. PiKVM's V4 handbook lists an ATX control board and cables in the kit, plus an RJ45 ATX control port. We did not find a PiKVM Wake-on-LAN statement on the pages checked, so it is not compared here. [1][2][3][6]

Our existing guides cover this in depth. The Comet Pro power-control guide walks through Wake-on-LAN, the ATX board and the Fingerbot. The remote-access KVM checklist covers recovery planning and on-site testing. Use them before you treat any of these as a way to restart a frozen machine unattended.

Worked example: a fictional home office server

Fictional scenario: Dae runs a small Linux file server in a closet with a gigabit switch, and travels for two weeks at a time. Ordinary SSH covers most problems. The gap is a kernel update that leaves the machine at a boot prompt. He already uses Tailscale on his laptop.

His comparison: the closet has Ethernet, so Comet Pro's Wi-Fi is not needed. Comet's listed $99.99 is the lowest of the three, and it lists Tailscale support. PiKVM's built-in ATX controller is appealing, but in-stock reseller listings start above twice Comet's price, and he does not need an LTE slot. He shortlists Comet, then writes the checks before ordering. Will it show his server's firmware screen? Which power-control part is in the box, and does it fit his motherboard header? Who can reseat a cable while he is away? If he cannot answer the power question, he plans recovery with a remote boot prompt only and a neighbor as the physical fallback. This is a planning example, not a test.

Pitfalls and who should skip all three

If the job is a one-off rescue, a trusted person on site may cost less than any device. If the job repeats, choose the cheapest unit that meets your network and power-control needs, then check it while someone can still reach the machine.

• Skip a KVM if remote desktop, SSH, or your operating system's own remote tools already cover the failures you see; a KVM is for pre-OS and frozen-OS recovery.
• Do not compare PiKVM reseller prices with GL.iNet store prices as if both were list prices; PiKVM's page shows multiple shops, stock varies, and listings exclude VAT. [5]
• Do not assume a power accessory is in the box; GL.iNet's pages conflict on the ATX board. [1][3]
• Do not plan on Wi-Fi for the KVM unless the model lists it; only Comet Pro does among the GL.iNet units compared here. [1][2]
• Keep the router, switch and KVM on reliable power; a KVM cannot recover anything if it is offline itself.
• Write down which remote-access path you will use (cloud, Tailscale, tunnel) and test it from outside the home before you travel.

Sources & verification

Product details and prices can change. Check the linked provider before buying.

1. GL.iNet: Comet (GL-RM1) product page Accessed 13 Oct 2026
2. GL.iNet: Comet Pro (GL-RM10) product page Accessed 13 Oct 2026
3. GL.iNet KVM Docs: Quick FAQs about GL.iNet KVM Accessed 13 Oct 2026
4. PiKVM: Products Accessed 13 Oct 2026
5. PiKVM: Buy Accessed 13 Oct 2026
6. PiKVM Handbook: PiKVM V4 Mini and Plus Accessed 13 Oct 2026
7. PiKVM Handbook Accessed 13 Oct 2026