
Logitech K845 Mechanical Illuminated Keyboard, Mechanical Switches, Strong Adjustable Tilt Legs, Full Size, Aluminum Top Case, 104 Keys, USB Corded, Windows (TTC Red Switches)
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AI Verdict
A full-size, USB-corded mechanical keyboard with TTC Red switches and an aluminum top case, designed for straightforward typing tasks.
This keyboard is a situational fit because its mechanical TTC Red switches and aluminum top case offer a satisfying typing experience and durability for its price band. However, the lack of software customization and non-detachable cable mean it's best suited for users who prioritize a straightforward, plug-and-play mechanical keyboard for daily typing without needing advanced features.
If you need more customization or wireless options, look for keyboards with software support, detachable USB-C, or Bluetooth connectivity.
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Pros
- Features a durable aluminum top case for structural rigidity.
- Offers adjustable tilt legs with 4-degree and 8-degree angles for ergonomic comfort.
- Equipped with TTC Red mechanical switches, tested for up to 50 million clicks, providing a linear typing experience.
- Includes a full-size 104-key layout with a number pad and FN keys.
- Provides white backlighting with 5 distinct patterns for visibility in low-light conditions.
Cons
- Lacks dedicated software for key remapping, macro creation, or advanced customization.
- The USB cable is non-detachable, which can limit portability and replacement options.
- Backlighting is single-color white only, without RGB or multi-color options.
- Some users report keycap legends fading or backlighting issues on specific keys after short periods of use.
- Does not include a wrist rest, which some users might find necessary for extended typing sessions.
Dimension Scores
The TTC Red mechanical switches provide a smooth, linear typing experience with a 50-million click lifespan, which users often describe as responsive.
As a USB corded keyboard, it offers a direct and stable connection without the latency or interference issues associated with wireless alternatives.
It features single-color white backlighting with 5 patterns, which is functional for low-light use, but lacks the customization and color options of many competitors.
The keyboard features a durable aluminum top case and long-life switches, contributing to a sturdy feel, though the back is plastic and some keycaps have reported fading.
Best For
- Typing-intensive office work requiring a full-size layout.
- Users transitioning to mechanical keyboards who prefer a simpler, corded setup.
- Environments where a minimalist aesthetic without 'gamer' styling is preferred.
- Budget-conscious buyers seeking mechanical switches without premium features.
Not Recommended For
- Gamers who require extensive macro programming or customizable RGB lighting.
- Users needing wireless connectivity or a detachable cable for portability.
- Individuals who prioritize an ultra-quiet typing experience, as mechanical switches can be audible.
- Those who expect advanced software control over keyboard functions.
Watch Out For
- Keycap legends have been reported to fade, and backlighting on numbers can diminish after less than a month.
- The USB cable is permanently attached, meaning if the cable breaks, the entire keyboard may need replacement.
- There is no software support for custom key assignments or macros, limiting personalization.
- Some users noted a slight wobble in the spacebar key.
- The back of the keyboard is made of plastic, not aluminum, which might not match the premium feel of the top case.
Full Specifications
| ASIN | B086YD9Z2X |
| Brand | Logitech |
| Color | TTC Red |
| Style | TTC |
| Series | Logitech K845 Mechanical Illuminated Corded Aluminum Keyboard |
| Item Weight | 0.01 ounces |
| Manufacturer | Logitech |
| Power Source | Wired |
| Special Feature | Adjustable Height, Adjustable Tilt, Backlit, Full-size Keyboard, Illuminated |
| Operating System | Windows 10, 11 or later |
| Hardware Platform | PC |
| Item model number | 920-009859 |
| Compatible Devices | Gaming Console |
| Product Dimensions | 17.12 x 5 x 1.43 inches |
| Keyboard Description | Standalone |
| Item Dimensions LxWxH | 17.12 x 5 x 1.43 inches |
| Connectivity Technology | USB |
| Recommended Uses For Product | Gaming |
| Is Discontinued By Manufacturer | No |
| Keyboard backlighting color support | Single Color |
What Buyers Say
Many users are surprised by the typing experience, often comparing it favorably to more expensive mechanical keyboards, especially the feel of the TTC Red switches. The aluminum top case gives it a premium look and feel that belies its entry-level price. However, the lack of software for customization is a recurring point of frustration, and some buyers have reported issues with keycap legends fading or specific LED lights failing after a short period. The non-detachable USB cable is also a common complaint, limiting its flexibility.
“Okay, so I needed a mechanical keyboard for work but didn't want to spend a fortune, and this one feels way better than I expected for the price. The keys are clicky (in a good way for me) and it looks pretty sleek on my desk, but seriously, no software? I can't even remap a single key, and the cable is stuck on there forever. My '5' key light is already looking a bit dim after a few months, which is annoying.”
Common Praise
- The TTC Red switches offer a smooth and responsive typing experience.
- The aluminum top case provides a premium and durable feel.
- The full-size layout with a number pad is convenient for productivity.
- The adjustable tilt legs (4-8 degrees) contribute to comfortable typing angles.
- The white backlighting is effective for typing in dim conditions.
Common Complaints
- No software for macros or key remapping is a significant limitation.
- The USB cable is permanently attached and cannot be replaced easily.
- Keycap legends have been reported to fade, and backlighting on some keys can fail.
- The back of the keyboard is plastic, which some users feel detracts from the overall build.
- The single-color white backlighting lacks the visual appeal and customization of RGB.
Ownership Tips
- The white backlighting, while functional, can appear dim or inconsistent on some keys over time.
- The lack of software means you're stuck with the default key functions and cannot create custom shortcuts.
- The plastic keycaps, while backlit, may show wear on the legends relatively quickly with heavy use.
- The fixed USB cable requires careful cable management and can be a point of failure if damaged.
- Despite the aluminum top, the keyboard's overall weight is not substantial, and some users note a slight flex in the base.
Frequently Asked Questions
Does this keyboard have RGB lighting?
No, the Logitech K845 features single-color white backlighting only, with five different illumination patterns.
Can I customize the keys or create macros?
No, this keyboard does not come with software support, so you cannot remap keys or set up macros.
Are the key switches replaceable?
The product description mentions a choice of switches (Red, Blue, Brown), but it does not specify if they are hot-swappable. User reviews suggest the switches are not easily replaceable, as it's not a feature highlighted.
Is the USB cable detachable?
No, the USB cable is permanently attached to the keyboard.
What kind of switches does this keyboard use?
This specific model uses TTC Red mechanical switches, which are linear and rated for up to 50 million clicks. Other variants may use different switch types.
Buying Guide
When you're looking at mechanical keyboards like this one, you need to think about how you'll use it. Mechanical switches offer a different feel than standard membrane keyboards, often preferred for typing speed and accuracy. Since this is a full-size, corded model, you're getting a dedicated numpad and a stable connection, but you're giving up portability and wireless flexibility. The single-color backlighting is for function, not flash.
Mechanical Switches (TTC Red)
These are the tiny mechanisms under each key. TTC Red switches are 'linear,' meaning they press straight down without a bump or click, which many typists find smooth and fast. Think of it like the difference between a smooth car accelerator (linear) versus one with a distinct 'click' when you press it (tactile or clicky).
Full Size (104 Keys)
This means the keyboard includes a dedicated number pad on the right, arrow keys, and a full set of function keys. It's like having a complete calculator and navigation panel built right in, which is handy for data entry or complex applications, but it takes up more desk space.
USB Corded
This keyboard connects directly to your computer with a USB cable. It means you'll always have a stable, lag-free connection, and you never have to worry about batteries. The trade-off is that the cable is always there, and you can't easily move the keyboard far from your computer.
Aluminum Top Case
The top plate of the keyboard is made of aluminum. This isn't just for looks; it adds significant rigidity and durability to the keyboard, making it feel more substantial and less prone to flexing than an all-plastic design. It's like having a reinforced frame on a car.
Alternatives
If you need wireless freedom, look for keyboards with Bluetooth or 2.4GHz connectivity. For extensive customization, seek models with dedicated software for macros and key remapping. If RGB lighting is a must, search for keyboards specifying multi-color or per-key RGB backlighting.



