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Basis: Logitech's published technical specifications, the retail listing and owner reports. WebReviewStar has not independently tested this unit.
Review summary
The short answer
Buy it if you want a keyboard and mouse you fit once and then never think about again. Skip it if you need Bluetooth, USB-C, or to switch between two machines — this has none of those.
Buy it if
- You want to stop charging peripherals
- The machine has a spare USB-A port you can give up permanently
- You type a lot and do not care what the keyboard looks like
Skip it if
- You need Bluetooth or multi-device switching
- Your laptop has no USB-A ports left
- You expect to remap keys with Logitech software
What it actually is
Two devices on one receiver. The MK735 is a bundle: a K710 full-size keyboard and an M510 mouse, both talking to a single Unifying USB receiver that occupies one port.
Nothing about it is clever. It types, it points, and it runs on ordinary AA batteries for years at a time. That is the entire proposition.
Three years is the product
The keyboard is rated for 36 months on a set of AA cells. The mouse, 24 months.
That number is worth sitting with, because it is the one thing this combo does that almost nothing else at the price does. A rechargeable keyboard means a cable, a dock, or a habit of plugging in. This means opening a drawer twice a decade.
There is a second, quieter benefit: the keyboard carries an LCD strip showing battery state, caps lock, num lock and scroll lock. That is status without software — no tray app, no driver, no account. On a machine you do not administer, that matters more than it sounds.
A keyboard that tells you its own battery state on a small screen is doing what modern peripherals make you install software to find out.
What works
- 36 months on the keyboard, 24 on the mouse, from AA batteries
- The LCD strip shows battery and lock state without software
- Full-size layout with a proper palm rest
- One receiver, one USB port, two devices
What doesn't
- Logitech's own support page says the Unifying software is no longer supported
- The compatibility list stops at Windows 7 — this is a 2010 design still on sale
- No Bluetooth and no USB-C receiver
- Laser sensor, not the optical type modern mice have settled on
The part the listing does not tell you
Logitech's own technical specification page carries this line:
"The Unifying Software is no longer supported or maintained by Logitech." — Logitech technical specifications
That is the configuration utility for the receiver. It does not stop the keyboard working — it is a standard HID device and the operating system will accept it — but it does mean the five "programmable" buttons on the mouse are only as programmable as your OS allows. If you buy this expecting to remap keys or set mouse macros with Logitech's tool, you are buying into a support line that has already closed.
The same support page lists compatibility as Windows XP, Vista and 7. That is not a mistake; it is a tell. This is 2010 hardware still being sold, and the fact that it works on Windows 11 and macOS is a happy consequence of it being a plain HID device rather than evidence of current support.
Where it falls short
One USB-A port, permanently. No Bluetooth, no USB-C receiver. On a laptop with two ports — one of them charging — that is a real cost, and it is the single biggest reason to look elsewhere.
It cannot switch machines. There is no button to move between a work laptop and a desktop. You unplug the receiver and move it, or you buy a second one.
Laser, not optical. The M510 uses a laser sensor. It tracks on more surfaces than an old optical mouse, but modern mice have largely settled on optical for power efficiency and surface behaviour. Not a fault, just an older choice.
Who should buy something else
If you move between two computers, buy a keyboard with multi-device Bluetooth. This cannot do it at any price.
If your laptop has no spare USB-A, look at a Bluetooth combo. The receiver is not optional here.
If you want to remap keys, buy something with current software support. That door is shut on this one.
Specs that matter
| Connection | 2.4 GHz Unifying USB receiver |
|---|---|
| Keyboard battery | 36 months, AA |
| Mouse battery | 24 months, AA |
| Keyboard | Full size, palm rest, LCD status display |
| Mouse | 5 buttons, laser sensor |
| Devices per receiver | Two — this keyboard and this mouse |
| Bluetooth | No |
| Receiver connector | USB-A |
| Stated compatibility | Windows XP / Vista / 7 — works on later systems as HID |
Questions
Does it work with Windows 11 or a Mac?
As a standard keyboard and mouse, yes. The configuration software is a different question — Logitech no longer supports the Unifying software, so treat the "programmable" buttons as ordinary buttons.
What batteries does it take?
AA cells in both. Logitech rates the keyboard at 36 months and the mouse at 24.
Is the MK735 the same as the MK710?
Effectively yes. The combo pairs the K710 keyboard with the M510 mouse, which is the MK710 bundle under a different name.
Will it work through a USB hub?
Usually, but the receiver needs a clean port. A bus-powered hub shared with a drive is the usual cause of dropouts.
Sources
The bottom line
If it suits how you actually use your network, this is the one to buy.
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