Keycap Profiles Explained: OEM, Cherry, SA, DSA, and XDA
You just decided to swap the keycaps on your mechanical keyboard — maybe a new colorway, maybe PBT for better durability. Then you hit the product listing and see "Cherry profile" or "SA spherical" and have no idea if they'll even fit your typing style. Keycap profiles are one of those specs that sounds trivial until you buy the wrong one and realize your muscle memory has completely collapsed.
This guide breaks down the five major profiles — OEM, Cherry, SA, DSA, and XDA — so you know exactly what you're getting before you spend $50–$150 on a new set.
First: Make sure your keys are all working correctly
Before you upgrade your keycaps, run a quick test on your current setup. Our Online Keyboard Tester shows you every key registration in real time — catch any dead or sticky keys before the swap, and verify everything works again after you reinstall.
What "Keycap Profile" Actually Means
A keycap profile describes two things: height (how tall the keycap is) and sculpting (whether different rows have different angles and heights).
Sculpted profiles like OEM, Cherry, and SA have each row angled differently — the top row tilts one way, the home row another, the bottom row another. This helps your fingers find rows by feel, like a physical map under your fingertips.
Uniform profiles like DSA and XDA are the same height and angle on every row. Every key feels identical. This gives you total flexibility in keycap placement but removes the tactile row-finding benefit.
Neither is objectively better — they suit different use cases and different typists.
OEM Profile — The Keyboard Default
OEM profile ships on the vast majority of pre-built keyboards. If you've ever used a Logitech, Corsair, Razer, or HyperX gaming keyboard, you've used OEM keycaps.
Specs
- Height: ~11.9mm (tallest of the common profiles)
- Sculpting: Row-specific (R1–R5)
- Top surface: Cylindrical (curves front-to-back)
- Stem mount: Standard MX-compatible
Best for
- Typists who learned on standard keyboards
- Gamers used to pre-built keyboards
- Anyone who doesn't want to re-learn key feel
OEM is tall — noticeably taller than Cherry. This gives you more keycap surface to print legends on, which is why budget keyboards and gaming keyboards favor it. The downside: taller keys mean slightly more finger travel, and the tall profile can feel tiring during extended typing sessions. OEM also has fewer premium aftermarket options compared to Cherry.
Cherry Profile — The Enthusiast Standard
Cherry profile (sometimes called MX profile) is the go-to for the mechanical keyboard enthusiast community. Most group-buy keycap sets are Cherry profile. If you're looking at a $70+ keycap set on a hobby site, it's almost certainly Cherry.
Specs
- Height: ~9.4mm (shorter than OEM)
- Sculpting: Row-specific (R1–R4)
- Top surface: Cylindrical
- Stem mount: Standard MX-compatible
Best for
- Enthusiasts building or upgrading
- Gamers wanting lower key feel
- Heavy typists who want less fatigue
Cherry profile is about 2.5mm shorter than OEM. That sounds small, but you notice it. The lower position means your fingers travel less per keystroke — many typists find this less fatiguing over long sessions. The rows are still sculpted, so you retain the tactile row-finding benefit of OEM while gaining a more precise, lower feel.
The main downside: if you're coming from OEM, Cherry will feel "sunken" for the first few days. Your muscle memory is calibrated to OEM height and you'll mistype more often until you adjust. Most people adapt in 1–2 weeks and never want to go back.
Pro Tip
If you're buying your first aftermarket keycap set and you mainly type, start with Cherry profile. It has the widest selection of high-quality PBT sets, the most colorways, and a massive secondary market for buying and selling. OEM has fewer quality options above $30.
SA Profile — The Retro Monster
SA profile is massive. We're talking taller than OEM, with a spherical (bowl-shaped) top surface instead of cylindrical. SA evokes the IBM keyboards of the 1970s and 80s — it's deliberately nostalgic and produces an extremely distinct, clacky sound signature.
Specs
- Height: ~16.5mm (tallest common profile)
- Sculpting: Row-specific (R1–R3, center row uniform)
- Top surface: Spherical (cups your fingertip)
- Stem mount: MX-compatible
Best for
- Keyboard collectors and aesthetics-focused builders
- Retro/vintage themed builds
- Typists who like a very pronounced key feel
SA's spherical top means your fingertip rests in a small bowl on each key — some typists love the centering effect, especially for slower deliberate typing. But SA is an acquired taste. The extreme height makes it uncomfortable for gaming (too far to reach without lifting wrists) and can cause wrist fatigue over long sessions without a wrist rest.
SA sets are almost always group-buys, which means long wait times (3–12 months) and high prices ($100–$200+). They're a statement piece, not a daily driver recommendation for most people.
Warning
SA profile is incompatible with some keyboard designs that have a tight case clearance. The taller keycaps can hit the case wall on compact keyboards (40%, 60%). Verify compatibility with your specific keyboard before ordering an SA set — check the manufacturer's supported profile list or community forums for your keyboard model.
DSA Profile — Flat and Uniform
DSA is the most popular uniform (non-sculpted) profile. Every key is the same height and the same angle — row 1, row 2, row 4, all identical. The top surface is a gentle spherical curve, but much flatter than SA.
Specs
- Height: ~7.6mm (shorter than OEM and Cherry)
- Sculpting: None (all rows uniform)
- Top surface: Spherical (shallow dish)
- Stem mount: MX-compatible
Best for
- Programmers who remap keys frequently
- 40% and ortholinear keyboard users
- Minimalist aesthetic builds
The killer feature of DSA: because every key is identical, you can put any keycap in any position and it feels the same. This is perfect for ortholinear keyboards (where the rows are straight columns instead of staggered) and for users who remap keys frequently.
The downside is exactly what makes it useful to some — zero row differentiation. On a standard staggered keyboard, you can't find rows by feel. DSA typists compensate with touch-typing muscle memory and the F and J bumps, but novice typists find it disorienting at first.
XDA Profile — Wider and Flatter Than DSA
XDA is another uniform profile, similar to DSA but with a wider, flatter top surface. Think of XDA as DSA but with more keycap real estate and a gentler dish.
Specs
- Height: ~9mm (similar to Cherry)
- Sculpting: None (uniform rows)
- Top surface: Spherical but wider than DSA
- Stem mount: MX-compatible
Best for
- Users who like uniform profiles but want more legend space
- Keycap sets with large or artistic legends
- Budget-conscious enthusiasts (XDA sets are often cheaper)
XDA's wider surface fits larger legends more gracefully than DSA, which is why many aesthetic/artisan group-buys use XDA for the visual impact. The feel is softer and less cupped than DSA — some prefer this, others miss the slight fingertip centering of DSA's sharper dish. Like DSA, XDA is entirely uniform, so no row guidance.
Quick Comparison: Profile Heights at a Glance
| Profile | Height | Sculpting | Top Surface | Best Use |
|---|---|---|---|---|
| OEM | ~11.9mm | Sculpted (R1–R5) | Cylindrical | Stock keyboard feel, gaming |
| Cherry | ~9.4mm | Sculpted (R1–R4) | Cylindrical | Enthusiast all-rounder |
| SA | ~16.5mm | Sculpted (R1–R3) | Spherical (deep dish) | Retro builds, collectors |
| DSA | ~7.6mm | Uniform (all rows same) | Spherical (shallow) | Ortholinear, remapping |
| XDA | ~9mm | Uniform (all rows same) | Spherical (wide, flat) | Aesthetic sets, budget |
How Profile Affects Sound
Keycap profile changes how your keyboard sounds — not just how it feels. Taller profiles like SA create a longer resonant chamber between the keycap and the keyboard case. This deepens the pitch and increases the "thock" factor. Lower profiles like DSA and Cherry tend to produce a crisper, higher-pitched sound.
This matters most if you're building a keyboard specifically for a target sound signature. If you want deep thocky sounds, taller sculpted profiles (SA, OEM) and low-pitched switches get you there. If you want clean clicky sounds, lower profiles (Cherry, DSA) let the switch's click mechanism shine through more clearly.
Which Profile Should You Buy?
Here's the simple decision tree:
- Coming from a stock gaming keyboard and want a drop-in replacement? Start with OEM. Zero adjustment period, huge selection, cheap.
- First enthusiast upgrade? Cherry profile. Best selection, most group-buy availability, the community standard.
- Building a themed or retro keyboard for aesthetics? SA for the full vintage look and sound. Check case compatibility first.
- Using an ortholinear or 40% keyboard, or you remap keys constantly? DSA or XDA. Uniform profiles eliminate the row-angle mismatch problem.
- Want uniform but with more budget options and larger legends? XDA over DSA.
One thing worth noting: all of these profiles mount on the same MX-compatible stem. Switching from OEM to Cherry to DSA doesn't require any changes to your switches or keyboard — just swap the caps.
Ready to Upgrade? Test Your Keyboard First
Before you invest in a new keycap set, use our Online Keyboard Tester to confirm every switch on your board is registering correctly. There's no point putting a $100 keycap set on a keyboard with a dead switch underneath.
Upgrade Your Keycaps
If you're ready to try a quality aftermarket keycap set in Cherry profile, the Akko keycap sets are a popular entry point — Cherry profile, PBT plastic, doubleshot legends that won't fade, and a wide range of colorways in the $30–$60 range. They're frequently recommended in beginner build threads as an affordable first upgrade.
Browse PBT Keycap Sets on Amazon →