Choosing a new keyboard can feel complicated. Even among affordable mechanical keyboards, it’s hard to tell which model truly fits your needs. Two popular options, the Redragon S101M-Ks and the Redragon K551, often come up in discussions among gamers and typists. While both are budget-friendly and come from the same brand, they offer different designs, features, and experiences. If you’re stuck deciding between these two, you’re not alone.
Let’s look closely at what sets the S101M-Ks and K551 apart, where they overlap, and which one makes more sense for your setup. By the end, you’ll have a clear idea of which keyboard suits your gaming, typing, or general computer use best.
Overview Of Redragon S101m-ks And Redragon K551
Understanding the basics is a good starting point. Both keyboards are made by Redragon, a company known for affordable gaming peripherals. However, their target audiences differ, as do their features.
What Is The Redragon S101m-ks?
The Redragon S101M-Ks is a gaming combo set, usually including a membrane keyboard and a gaming mouse. The keyboard in this set is not mechanical; instead, it uses a membrane system, making it quieter and lighter to press. The set is designed for gamers on a tight budget who want a plug-and-play experience without buying parts separately.
Key features often include:
- RGB backlighting with several modes
- Dedicated multimedia keys
- Integrated wrist rest
- Spill-resistant design
The S101M-Ks is popular with casual gamers and people who want a full-sized keyboard without spending a lot.
What Is The Redragon K551?
The Redragon K551, also known as the Vara, is a mechanical keyboard. It uses mechanical switches (often Outemu Blue, Red, or Brown), which offer a more tactile and durable typing experience. This model is built for users who want to move beyond membrane keyboards and enjoy the benefits of real mechanical switches.
Standout features include:
- Full mechanical key switches
- Tenkeyless (TKL) design — no number pad, so it’s more compact
- Metal and ABS construction for durability
- Customizable RGB or red-only backlighting (depending on the version)
The K551 is favored by gamers and writers who value responsive, long-lasting keys and a smaller desk footprint.
Design And Build Quality
How a keyboard feels on your desk matters just as much as the specs. Let’s compare the build and design of both models.
Size And Layout
- The S101M-Ks is a full-size keyboard, meaning it has a number pad, function keys, and a row of multimedia keys. It’s a little larger, which is handy for spreadsheets or games needing extra keys.
- The K551 is a tenkeyless (TKL) model. It skips the number pad, making it more compact and easier to fit in small spaces.
Material And Durability
- The S101M-Ks has a plastic chassis with a built-in wrist rest. It’s lightweight but less sturdy than mechanical keyboards.
- The K551 uses a metal top plate and heavy-duty ABS plastic, giving it a more solid, premium feel. It’s heavier but less likely to move during intense gaming.
Aesthetics And Lighting
- Both offer RGB lighting, but the S101M-Ks has more pre-set patterns and a “gamer” look, while the K551 provides a more subtle, professional appearance (especially in the red-only variant).
- The S101M-Ks’s wrist rest adds to the visual bulk; the K551 looks sleeker and more minimal.
Here’s a side-by-side look at the physical features:
| Feature | Redragon S101M-Ks | Redragon K551 |
|---|---|---|
| Size | Full-size (104 keys) | Tenkeyless (87 keys) |
| Material | Plastic | Metal top, ABS plastic |
| Backlighting | RGB (multiple effects) | RGB or Red-only (model-dependent) |
| Wrist Rest | Integrated | None |
| Weight | Lightweight | Heavier, stable |

Key Switches And Typing Experience
One of the biggest differences is the type of key switch used. This affects noise, feel, and durability.
Membrane Vs Mechanical
- The S101M-Ks uses membrane switches. Pressing a key pushes a rubber dome, which completes a circuit. This makes the keyboard quieter and the keys softer to press. However, membrane switches wear out faster and may feel “mushy.”
- The K551 uses mechanical switches (often Outemu Blues). Pressing a key activates a separate mechanical switch, giving a crisper, tactile feel and an audible “click” (for blue switches). These last longer and are preferred by many for gaming and typing.
Sound Level
- S101M-Ks is quiet—good for shared spaces or late-night use.
- K551 is loud (if you choose Blue switches)—great feedback for touch typing but might annoy others nearby.
Typing And Gaming Comfort
- The S101M-Ks’s wrist rest helps with comfort during long sessions, but the keys feel less precise.
- The K551, though lacking a wrist rest, offers more accuracy and speed for fast typing or rapid key presses in games.
Durability
Mechanical switches (K551) often last 50 million+ keystrokes, while membrane switches (S101M-Ks) may wear out at 5–10 million. For heavy users, K551 will outlive the S101M-Ks.
Features And Customization
Modern keyboards offer more than just typing. Extra features can make a big difference, especially for gaming.
Backlighting And Effects
- Both have RGB backlighting, but the S101M-Ks usually has more built-in effects and color zones.
- The K551 allows for some customization, especially if you choose the RGB version. However, effects are simpler than premium models.
Macro And Media Keys
- The S101M-Ks has dedicated multimedia keys for volume, pause, and more—handy for music and videos.
- The K551 doesn’t have separate media keys, but you can access media controls with function key combinations.
Anti-ghosting And N-key Rollover
- The K551 supports full N-key rollover, meaning you can press many keys at once and every press will register. This is vital for complex gaming moves.
- The S101M-Ks has less advanced anti-ghosting—it’s fine for most games but might miss a press if you hit many keys at once.
Spill Resistance
- The S101M-Ks is advertised as spill-resistant, which helps if you’re worried about drinks at your desk.
- The K551 is not spill-resistant, so caution is needed.
Software Support
- S101M-Ks usually works as a plug-and-play device with limited software control.
- The K551 may offer basic customization through Redragon’s software, but options are not as deep as high-end models.
Here’s how their features stack up:
| Feature | Redragon S101M-Ks | Redragon K551 |
|---|---|---|
| Dedicated Media Keys | Yes | No (uses FN combos) |
| Anti-Ghosting | Partial | Full N-key rollover |
| Spill Resistance | Yes | No |
| Macro Support | No | Basic (with software) |
| Software Customization | Very limited | Basic (lighting/macros) |
Gaming Performance
If you’re buying a keyboard mainly for games, the feel and response can make or break your experience.
S101m-ks For Gaming
- The soft keys are gentle for long sessions but offer less feedback.
- RGB lighting creates a fun atmosphere.
- Integrated wrist rest supports your hands during gameplay.
- Not ideal for fast-paced competitive gaming where many keys are pressed quickly.
K551 For Gaming
- Mechanical switches provide fast response and clear feedback.
- N-key rollover ensures every key press is registered, even in intense games.
- Compact size allows more mouse space—good for FPS gamers.
- No wrist rest, so you may want to buy one separately for comfort.
Real-world Example
A casual gamer who enjoys RPGs or MMOs might enjoy the S101M-Ks for its comfort and extra keys. A competitive shooter player who values speed and accuracy will likely prefer the K551’s mechanical switches and compact design.
Typing And Productivity
Beyond gaming, many people use their keyboards for work, study, and creative projects. Let’s see how these two compare.
S101m-ks For Typing
- Keys are quiet and require little force, so it’s less tiring for long writing sessions.
- The number pad is useful for data entry.
- The wrist rest reduces strain.
However, the “mushy” membrane feel can slow down fast typists and is less enjoyable for those who want tactile feedback.
K551 For Typing
- Mechanical switches are highly responsive, making it easy to type quickly and accurately.
- The tactile bump (on blue or brown switches) helps reduce typing mistakes.
- The compact layout saves desk space but loses the number pad, which some users miss.
One insight many overlook: typing on a loud mechanical keyboard (like the K551 with blue switches) can be distracting in quiet offices or shared spaces.

Price And Value
Budget is often a deciding factor. While both keyboards are affordable, the price difference reflects their build and features.
Redragon S101m-ks
- Usually priced between $30–$40 (often as a set with a mouse).
- Great value for beginners or those who want a full setup at a low price.
- Membrane design keeps the cost down.
Redragon K551
- Typically costs $40–$55 (keyboard only).
- Mechanical switches justify the higher price.
- Offers better longevity, so the cost per year of use is lower for heavy typists or gamers.
In short, the S101M-Ks is the best value if you need both a keyboard and mouse and don’t care about mechanical switches. The K551 is a better investment if you want a premium typing or gaming experience on a budget.
Here’s a price/value comparison table:
| Keyboard | Average Price (USD) | Included Accessories | Value for Money |
|---|---|---|---|
| Redragon S101M-Ks | $30–$40 | Keyboard + Mouse | Excellent for beginners |
| Redragon K551 | $40–$55 | Keyboard only | Best for gaming/typing quality |
Who Should Buy Each Model?
Understanding your priorities can make the decision easier. Here’s a breakdown based on different user needs:
Choose The Redragon S101m-ks If:
- You’re on a tight budget and want both a keyboard and mouse in one package.
- You prefer quiet typing (shared space, family, late-night use).
- You need a number pad for work or school.
- You don’t require high-speed gaming features like full N-key rollover.
- You want plug-and-play simplicity with no need for advanced software.
Choose The Redragon K551 If:
- You want the feel of mechanical switches for better gaming or typing.
- You play fast-paced games that require many keys pressed at once.
- You value durability—expect to keep your keyboard for years.
- You don’t need a number pad (or prefer a smaller desk footprint).
- You want some lighting customization and can use basic software.
Common Mistakes When Choosing
Many buyers focus only on price or the “gaming” label. Here are mistakes to avoid:
- Ignoring switch type: Mechanical and membrane feel very different. Try both in-store before deciding if possible.
- Not considering desk space: Full-size keyboards like the S101M-Ks take up more room.
- Overlooking noise level: Mechanical keyboards are often loud. If you share a room, this matters.
- Assuming all RGB is equal: Cheaper models may have fixed effects, not full customization.
- Forgetting about rollover: If you play games with complex key combos, N-key rollover is important.
One extra insight: Many beginners believe mechanical keyboards are only for gamers. In reality, writers, coders, and professionals often prefer them for their speed and accuracy.
Real User Experiences
Let’s look at what actual users say after months of daily use.
- S101M-Ks buyers praise the value and comfort, but some find the keys wear out after a year or two.
- K551 users love the clicky feel and reliability, though some miss having a number pad for work tasks.
- Some people started with the S101M-Ks and later upgraded to the K551 as their needs changed.
A common theme: Your first keyboard doesn’t have to be your last. Many users try a budget model, learn what they like, and upgrade later.

How To Decide: A Simple Checklist
If you’re still unsure, ask yourself:
- Do I need a mouse too? (If yes, S101M-Ks wins.)
- Do I want a quiet or loud keyboard?
- Do I need a number pad for work?
- Is gaming speed and accuracy my top priority?
- Am I okay spending a bit more for long-term durability?
Answering these questions makes the choice clearer.
Where To Buy And What To Watch Out For
Both models are sold on major online stores like Amazon, Newegg, and Redragon’s official website. Beware of:
- Fake listings or used items sold as new
- Outdated versions (always check for the latest model)
- Shipping times and return policies
Always buy from trusted sellers. For more information on Redragon and their products, you can visit the official Redragon website.
Frequently Asked Questions
Is The Redragon K551 Really Mechanical?
Yes, the K551 uses mechanical switches (usually Outemu). Each key has a separate switch, providing tactile feedback and longer life than membrane keyboards.
Can You Remove The Keycaps On Both Keyboards?
You can remove keycaps on both models, but it’s easier and safer on the K551. The S101M-Ks has membrane keys, which are not designed for frequent removal.
Which Is Better For Office Use?
The S101M-Ks is better for quiet, shared offices. The K551 is louder (especially with blue switches) and may disturb coworkers. However, for solo offices, the K551 offers a better typing feel.
Can You Use These Keyboards With Mac?
Both work with Mac for basic typing and gaming. However, advanced features (like software customization) may be limited or unavailable on macOS.
Which Keyboard Is More Durable?
The K551 is more durable due to its mechanical switches and metal build. It’s designed to handle heavy daily use for years, while the S101M-Ks may wear out sooner.
Both the Redragon S101M-Ks and K551 offer excellent value, but your best choice depends on your priorities. If you want a quiet, affordable starter set, the S101M-Ks is hard to beat. If you’re ready for the mechanical experience and don’t mind spending a little more, the K551 will serve you well for a long time.
Remember, your keyboard is a tool you use every day—choose the one that fits your hands, your desk, and your style.