--- product_id: 543000133 title: "CB-GK-21 Themis 61 Key Mechanical Per Key RGB Gaming Keyboard with Outemu Blue Switches and Software (Black)" brand: "cosmic byte" price: "AR$396011" currency: ARS in_stock: true reviews_count: 5 url: https://www.desertcart.com.ar/products/543000133-cb-gk-21-themis-61-key-mechanical-per-key-rgb store_origin: AR region: Argentina --- # 50M+ keystroke durability with Outemu Blue switches Per-key RGB with 10+ lighting modes 61 compact keys for sleek desk setup CB-GK-21 Themis 61 Key Mechanical Per Key RGB Gaming Keyboard with Outemu Blue Switches and Software (Black) **Brand:** cosmic byte **Price:** AR$396011 **Availability:** ✅ In Stock ## Summary > 🌌 Elevate your desk game with Themis — where style meets unstoppable precision! ## Quick Answers - **What is this?** CB-GK-21 Themis 61 Key Mechanical Per Key RGB Gaming Keyboard with Outemu Blue Switches and Software (Black) by cosmic byte - **How much does it cost?** AR$396011 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/543000133-cb-gk-21-themis-61-key-mechanical-per-key-rgb) ## Best For - cosmic byte enthusiasts ## Why This Product - Trusted cosmic byte brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Seamless Control:** Dedicated software enables macro programming and RGB customization, empowering you to tailor your keyboard to your workflow. - • **Compact Powerhouse:** 61-key layout maximizes desk space without sacrificing essential functionality—perfect for minimalist setups. - • **Vibrant Customization:** Per-key RGB lighting with over 10 dynamic modes lets you personalize your workspace and stand out in any Zoom call. - • **Ghosting-Free Gameplay:** Simultaneous key presses register flawlessly, ensuring no missed commands during high-stakes gaming or fast typing. - • **Precision Meets Performance:** Outemu Blue switches deliver tactile, clicky feedback with 50 million+ keystrokes for long-lasting reliability. ## Overview The Cosmic Byte CB-GK-21 Themis is a compact 61-key mechanical keyboard featuring durable Outemu Blue switches rated for over 50 million keystrokes. It offers per-key RGB lighting with multiple modes, anti-ghosting for flawless simultaneous key presses, and customizable macros via dedicated software. Wired via USB-C, it’s designed for both Windows and Mac users seeking a high-performance, space-saving keyboard with vibrant aesthetics. ## Description Product Description Features Compact Mechanical Keyboard. Blue Outemu Mechanical Key Switches. 61 keys Keyboard. 50 million + Operations for Each Key. Injection Molded Double-shot Color Keycaps. Simultaneous Operation for All Keys Without Any Key Ghosting Effects. Spectra RGB lighting effects, more than 10 LED lighting mode Win-Key Lock Windows Buttons can be disabled. Wired USB Connection for Laptops and PCs. Adjustable Backlight Brightness and Speed Software support to control Macros and customize RGB lights Specifications System: Windows, Mac Switch Life: OUTEMU 50 million times Number of Keys: 61keys US layout Product interface: USB C to USB A Cable: 1.5m Current consumption: max.200mA Size: 291 x 101 x 39mm Weight: 556g Technical Data Blue Switches Total stroke: 4.00mm Conducting stroke: 2.20±0.6mm Conducting strength: 50±10gf Tactile strength: 60±10gf Tactile stroke: 1.80mm Minimum triggering force: 30gf Min Termination strength: 65gf Max Manufacturer Contact Information Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi, Pune 412308, Maharashtra, India. cc@thecosmicbyte.com ## Features - Injection Molded Double-shot Color Keycaps - Simultaneous Operation for All Keys Without Any Key Ghosting Effects - Software support to control Macros and customize RGB lights - Wired USB C Connection for Laptops and PCs ## Technical Specifications | Specification | Value | |---------------|-------| | Antenna Location | Gaming | | Asin | B09SH9PS1G | | Box Contents | USB Cable | | Brand Name | Cosmic Byte | | Button Quantity | 61 | | Colour | Black | | Compatible Devices | Laptop, PC | | Connectivity Technology | USB-C | | Customer Reviews | 4.2 4.2 out of 5 stars (474) 4.2 out of 5 stars | | Enclosure Material | Plastic | | Hand Orientation | Ambidextrous | | Importer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi, Pune 412308, Maharashtra, India 1800313007700 | | Item Dimensions L X W X H | 29.1L x 10.1W x 3.9H centimetres | | Item Type Name | Keyboard | | Item Weight | 556 Grams | | Keyboard Backlighting Color Support | RGB | | Keyboard Description | Gaming | | Keyboard Layout | QWERTY | | Language | English | | Manufacturer | Cosmic Byte | | Manufacturer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi, Pune 412308, Maharashtra, India. cc@thecosmicbyte.com | | Manufacturer Part Number | CB-GK-21 | | Model Name | Themis | | Model Number | Themis | | Number Of Items | 1 | | Number Of Keys | 61 | | Packer Contact Information | Cosmic Byte, Prakash Warehousing, S. No.163, Hissa No 1-2-3-4-5A-5B/2/1, Phursungi, Pune 412308, Maharashtra, India 1800313007700 | | Power Source | Wired | | Product Features | Backlit, Ergonomic | | Style Name | Blue Switch | | Switch Type | Clicky | | Unit Count | 1.0 count | | Water Resistance Level | Water Resistant | ## Product Details - **Brand:** Cosmic Byte - **Colour:** Black - **Compatible devices:** Laptop, PC - **Connectivity technology:** USB-C - **Keyboard backlighting colour support:** RGB - **Keyboard description:** Gaming - **Product dimensions:** 29.1L x 10.1W x 3.9H centimetres - **Recommended uses for product:** Gaming - **Special feature:** Backlit, Ergonomic - **Style:** Blue Switch ## Images ![CB-GK-21 Themis 61 Key Mechanical Per Key RGB Gaming Keyboard with Outemu Blue Switches and Software (Black) - Image 1](https://m.media-amazon.com/images/I/71utzsmU6qL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Best budget 60% keyboard! *by on Reviewed in India 20 March 2022* The review will be straightforward. I am using it for the past few months daily for gaming and coding mostly. I purchased the keyboard for Rs. 2,060 on Amazon. Delivery was on time but the package I recieved was tampered with, missing the UBS c cable and key cap puller. So I had to replace the product. Anyway received a good one later on.the keyboard shortcuts are inbuilt.fn+q = vol downfn+w = vol upfn+e = mutefn+z = previous/rewindfn+x = play pausefn+c = next/forwardfn+v = stopfn+h = insertfn+b = deletefn+j = homefn+n = endfn+k = pageupfn+m = pagedownfn+i = scroll lockfn+o = numlock (don't know why even xD)fn+esc = `(tildeHere are the pros and cons of the keyboard.Pros.Compact. Doesn't take up much space on my table.Build quality is good enough for the price.Mechanical switches are blue outemu. Great sound.Braided cable is long enough.RGB with diffuser plate looks superb and bright with actual RGB controls not static row colors.All keys are anti ghosting. Tested myself.Cons.No height adjustable leverage on the back.No drainage hole beneath the keyboard.The spacebar kind of gives way after rough use. Double clicks sometimes but it's okay.Arrow keys are on the function key. So you have to press fn to use the arrow keys.The usb c port on the keyboard is a bit loose for my liking. Could have been in the frame or something.Overall best bang for buck budget 60% keyboard. ### ⭐⭐⭐⭐⭐ One of the best Mechanical Blue Switch Keyboards in its price segment. *by on Reviewed in India 12 June 2024* The positive's of this are:1. The keys are tactile and responsive2. Its very easy to clean3. It feels quite durable.4. Blue keys with very good sound. (Are very loud if use near to roommate/parents💀)5. 10KL means less space, perfect for me in my gaming setup. My laptop already has all the other keys I would need.The negative points are:1. There are no (flip) legs.2. The keys are tightly secured to the keycaps and are somewhat difficult to remove if you don't have the correct tool and technique.3. The backlight only shows up on the keys/numbers. The alternate key function (F1, F2, F3, etc) are printed with grey/white color, so unless you got direct light on the keyboard, they wont be visible with the backlight.4. Little hard to find the shortcuts in the first few months, especially if you already had habit from another keyboard.If you get this KB for Rs 2300 or less, go for it. Its a good 10 keyless keyboard for gaming. If you are programmer or often use the keypad, then this is a poor choice of mechanical keyboard. ### ⭐⭐⭐⭐ Worth its price *by on Reviewed in India 31 August 2024* I am writing this review after 2 year and 4 month of constant use. The plastic quality is decently nice and the wire quality is fabulous. The keyboard worked really good till 2 years in terms of literally everything. But from past 2.5 months approximately, i am facing issue with the keystrokes. The keyboard randomly types the letter more than one or twice especially during fast typing. From my experience i can surely say its due to the quality of mechanical switches used and not a software or driver problem. But overall great experience !!! ## Frequently Bought Together - Cosmic Byte CB-GK-21 Themis 61 Key Mechanical Per Key RGB Gaming Keyboard with Outemu Blue Switches and Software (Black) - Redragon M612 Predator RGB Gaming Mouse, 8000 DPI Wired Optical Gamer Mouse with 11 Programmable Buttons & 5 Backlit Modes, Software Supports DIY Keybinds Rapid Fire Button, White --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/543000133-cb-gk-21-themis-61-key-mechanical-per-key-rgb](https://www.desertcart.com.ar/products/543000133-cb-gk-21-themis-61-key-mechanical-per-key-rgb) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-08-25*