Corsair K70 RGB TKL Champion Series Gaming Keyboard CH-911901A - OPX Switch (Renewed)
Bottom line: The Corsair K70 RGB TKL Champion Series Gaming Keyboard CH-911901A ($119.95 on Amazon as of 2026-10-06): OPX optical-mechanical switches actuate at 1.0mm, rated for 150 million keystrokes; main trade-off: renewed unit sold by Amazon Renewed, not a factory-sealed Corsair retail box.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ OPX optical-mechanical switches actuate at 1.0mm, rated for 150 million keystrokes
- ✓ 8,000Hz hyper-polling via AXON processing, up to 8x faster input than standard boards
- ✓ Tournament switch locks static lighting and disables macros mid-match
- ✓ 1.5mm double-shot PBT keycaps resist shine and legend fade
- ✓ TKL layout plus detachable USB-C cable packs down for LAN events
Cons
- ✗ Renewed unit sold by Amazon Renewed, not a factory-sealed Corsair retail box
- ✗ Linear OPX switches only; no tactile or clicky option on this SKU
- ✗ Tenkeyless layout drops the numpad, awkward for spreadsheet or accounting work
- ✗ Per-key RGB and macro programming require installing Corsair iCUE software
Manufacturer description
The CORSAIR K70 RGB TKL Optical-Mechanical Gaming Keyboard will carry you to victory with a compact tenkeyless form-factor and powerful CORSAIR AXON hyper-processing technology. CORSAIR OPX RGB optical-mechanical keyswitches offer hyper-fast 1.0mm actuation guaranteed for 150 million keypresses, topped by durable double-shot PBT keycaps. Win in style with a refined aluminum frame and dynamic per-key RGB backlighting and flip the tournament switch to instantly disable macros and swap to distraction-free lighting. Powerful iCUE software on both PC and macOS enables custom macro programming and…
SpecPicks Verdict
SpecPicks scored Corsair K70 RGB TKL Champion Series Gaming Keyboard CH-911901A using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. Amazon Renewed's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Built for Champions: CORSAIR CHAMPION SERIES products are designed for and tested by top esports professionals – helping to carry you to victory with a competition-grade keyboard featuring a portable and space-saving tenkeyless form-factor, a detachable USB Type-C cable, and a tournament mode switch.
- CORSAIR OPX RGB Optical-Mechanical Keyswitches: Hyper-fast input with 1.0mm actuation distance and smooth linear travel, guaranteed for 150 million keystrokes.
- Powered by CORSAIR AXON Hyper-Processing Technology: CORSAIR’s most advanced gaming keyboard experience processes and transmits inputs up to 8x faster than conventional gaming keyboards with 8,000Hz hyper-polling, 4,000Hz key scanning, and up to 20 layers of hardware RGB lighting processing while maintaining speed performance.
- PBT Double-Shot Keycaps: A precision-molded keycap set with a standard bottom row layout resists wear, fading, and shine, with 1.5mm thickness for rigid stability.
- Tournament-Ready: Flip the tournament switch to focus on winning those crucial games, automatically locking to distraction-free static backlighting and disabling accidental macro activations.
Full Specifications
| Brand | Corsair |
|---|---|
| Color | Black |
| Style | K70 RGB TKL CHAMPION SERIES |
| Theme | gaming |
| Model Name | K70 TKL OPX |
| Style Name | K70 RGB TKL CHAMPION SERIES |
| Unit Count | 1.0 Count |
| Switch Type | Linear |
| Connectivity | USB |
| Model Number | CH-911901A-NA |
| Power Source | Corded Electric |
| Compatibility | Switch |
| Built-In Media | USB Cable |
| Number of Keys | 87 |
| Button Quantity | 104 |
| Keyboard Layout | QWERTY |
| Mfr Part Number | CH-911901A-NA |
| Special Feature | Backlit |
| Antenna Location | Travel |
| Hand Orientation | Ambidextrous |
Ready to buy?
Corsair K70 RGB TKL Champion Series Gaming Keyboard CH-911901A - OPX Switch (Renewed) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Related Gaming Peripherals
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best 1440p Gaming GPUs in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- RTX 5090 vs RTX 3090: Specs, Gaming & AI Compared (2026)
- Best Raspberry Pi Accessories for Home-Lab Builds in 2026
- Best GPU for 4K Gaming in 2026: Five Cards Ranked by FPS-per-Dollar
- Sound Blaster Audigy 2 ZS vs Sound Blaster Live! on Windows 98: Which Wins for Late-90s Gaming?
- Build a Raspberry Pi 4 NAS With an SSD in 2026
- Microsoft Signals 32GB RAM as the Windows 11 Gaming Baseline
- Devin Maker Cognition Hits $26B: What a Capital-Backed Coding Agent Race Means for Local-LLM Builders
- VRAM calculator: what can you actually run on your GPU?
- Noctua NH-U12S vs DeepCool AK620: Best Air Cooler for a Ryzen 5800X
- AI coding assistants ranked — Claude Code, Cursor, GitHub Copilot, Aider
- Forza Horizon 6 Runs Surprisingly Well on Steam Deck — Here's What Players Are Reporting
- Best USB Microphone for a Raspberry Pi Project YouTube Channel (2026)
- Logitech G920 vs Thrustmaster: Best Beginner Sim Racing Setup 2026
- Best Budget CPU for Gaming + Productivity in 2026: The Honest Buying Guide
- Best Wired Gaming Headset Under $50 for PC and Console in 2026
- Beyond LLMs: How Agent Logic Scales Enterprise AI
- Best GPU for Running Llama 8B Under $300 in 2026
- Raspberry Pi 5 Secondary Monitor Setup Guide (2025)
- Best Budget Streaming Mic + Capture Setup: Blue Yeti vs HyperX QuadCast 2 S
- A 180Hz 1440p Gaming Monitor at Entry-Level Pricing — How It Stacks Against Our 4K Picks
- Best Gaming Mouse for FPS Esports Under $100 (2026)
- Best Gaming Gifts Under $60 in 2026
- Framework RTX 5070 12GB Module: Why It's $1,199, Not $699
- How to run Qwen 3 32B on AMD Radeon RX 7900 XTX
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090