COSTOM WK75 75% Wireless Gaming Mechanical Jelly Keyboard
Bottom line: The COSTOM WK75 75% Wireless Gaming Mechanical Jelly Keyboard ($42.99 on Amazon as of 2026-10-06): Gasket mount with 5+ layers of sound damping for a quieter, deeper typing sound; main trade-off: 75% layout drops the dedicated numpad, so number entry moves to a Fn layer.
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
- ✓ Gasket mount with 5+ layers of sound damping for a quieter, deeper typing sound
- ✓ Three connection modes: Bluetooth 5.0, 2.4GHz dongle, and USB-C wired with side-button switching
- ✓ Hot-swap sockets take most 3-pin or 5-pin switches; ships with puller and 3 spare switches
- ✓ Driver software remaps keys, records macros, and edits the 16.8M-color RGB per key
Cons
- ✗ 75% layout drops the dedicated numpad, so number entry moves to a Fn layer
- ✗ Linear switches only; no tactile or clicky option listed for typists who prefer bump
- ✗ Battery capacity and wireless runtime are not stated in the listing specs
- ✗ Bundled RGB software is Windows-oriented, so Xbox and Mac users lose customization
SpecPicks Verdict
SpecPicks scored COSTOM WK75 75% Wireless Gaming Mechanical Jelly Keyboard using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. COSTOM'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
- A Good 75% Mechanical Keyboard: You deserve the WK75 wireless gaming keyboard! Compact but functional. It comes with a gasket structure with at leasy 5 layers sound damping paddings, effectively reducing keystrocks noise from typing or gaming, making the sound more natural and more charming. Its varied features brings you a good gaming experience in tactile feedback and sound quality
- More RGB Modes for Your Choice: WK75 light up rgb backlit keyboard features 16.8 million lighting colors. There's 12 cool music rhythm lighting effects in factory-setting driver, adding the atmosphere of the game. You can turn on / turn off the knob or the FN + key combination easily to adjust the lighting brightness and speed.Single lighting effect is included
- Multi-Device Connection to Meet Daily Needs: This bluetooth mechanical keyboard supports Bluetooth 5.0, 2.4GHz wireless and Type-C wired connectivity, allowing you to a quick switch freely between multi devices via a side shortcut button. It can work with any device compitible for Windows2000/Windows XP/Vista/Windows 7 and above. Suitable for work and game
- Hot Swap Socket & Custom Software:This hot swappable mechanical keyboard can be replaced to most 3-pin or 5-pin mechanical switches or any keycaps as you like. We offer a free 2-in-1 keycap puller and 3 replacement switches. Even beginners can easily get started. You can also redefine keymapping, macros, and RGB backligts in the original driver. Have fun in customization
- Ergonomic Design & N Key Rollover:WK75 provids a nice support angle for comfortable position, and reduces hand fatigue body pain and caused by prolonged use. Its 2-stage kickstand design can be adjusted as per your requests. The invisible USB dongle storage is against loss. It's also a keyboard with NKRO, allowing you to switch into many keys freely and improving typing efficiency
Full Specifications
| Brand | COSTOM |
|---|---|
| Color | Pink |
| Style | Classic |
| Model Name | SK65 |
| Style Name | Classic |
| Switch Type | Linear |
| Connectivity | Bluetooth, USB-C, 2.4GHz |
| Model Number | SK65 |
| Power Source | Corded Electric |
| Compatibility | PC, Xbox, Switch |
| Built-In Media | Keycap Puller |
| Connection Type | Wired |
| Keyboard Layout | QWERTY |
| Special Feature | Hot-Swappable |
| Antenna Location | Personal |
| Compatible Devices | PC |
| Enclosure Material | Aluminum |
| Additional Features | Hot-Swappable |
| Keyboard Description | Mechanical |
| Warranty Description | 1 Year |
| Full listing title | COSTOM WK75 75% Wireless Gaming Mechanical Jelly Keyboard, BT5.0/2.4GHz/USB-C, Hot Swappable Pre-lubed Custom Linear Switches, Gasket Structure, RGB Backlit Cute Keyboard for PC/Laptop/Xbox(Pink) |
Ready to buy?
COSTOM WK75 75% Wireless Gaming Mechanical Jelly Keyboard, BT5.0/2.4GHz/USB-C, Hot Swappable Pre-lubed Custom Linear Switches, Gasket Structure, RGB Backlit Cute Keyboard for PC/Laptop/Xbox(Pink) 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 →- Best 1440p Gaming GPUs in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- How to Build a Windows 98 Retro PC in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
More reviews from the SpecPicks archive
Browse all reviews →- Cerebras Running GPT-5.4 and 5.5 Internally: What it Means for Local LLM Builders
- Build a Wall-Mounted Raspberry Pi 4 Arcade Cabinet: 3D-Printed Case, SSD Boot, Real BOM
- LG UltraGear 52G930B 52-inch 5K gaming monitor review: Extreme in every respect
- Best $500-600 Gaming PC Build for a Ryzen/RX 6600 Rig
- Don't Buy Cheap SSDs: Hidden Risks Explained (2026)
- Silent, SD-Free Retro Storage: CompactFlash + IDE on Win98/XP
- Build a Self-Updating 24/7 FM Radio Station on a Raspberry Pi Zero W
- DualSense vs 8BitDo Pro 2 vs GameSir G7 SE: Best PC Controller in 2026
- Best SSD for Steam Deck OLED Expansion in 2026: SATA Adapter vs M.2 2230
- RTX 5060 8GB vs RTX 4070 12GB for Qwen3 14B: Does 8GB Fit? (2026)
- Best CompactFlash and IDE/SATA-to-USB Storage Gear for Retro PC Builds in 2026
- Secluso: Private DIY Home Security on a Raspberry Pi 4
- ZOTAC RTX 3060 Twin Edge vs MSI RTX 3060 Ventus 3X: Which 12GB Card?
- Best Budget SSD for a Steam Library: NVMe vs SATA Game Load Times
- Ryzen 5 2600 vs Ryzen 7 5800X for CPU-Only Qwen3 30B-A3B (2026)
- Best Internal SSDs for Gaming PCs (2026)
- GPT and Claude Flunked Bridgewater's Finance Test — Why a Local RAG Box Fills the Gap
- Best 12GB GPU for Local LLMs in 2026
- Intelligence Index v4.1 Goes Agentic: Can a 12GB RTX 3060 Keep Up Locally?
- ComfyUI Ideogram 4: Setup, GPU Needs & Hardware Guide
- Voodoo 5 6000 Benchmarks: Quake III at Five Resolutions
- 3dfx Voodoo5 5500 AGP Install Guide: Glide, 4-Sample FSAA, and the Last Great 3dfx Driver Stack for Win98SE
- RTX 5090 vs RTX 3090: Specs, Gaming & AI Compared (2026)
- GeForce 4 Ti 4600 + Pentium 4 Northwood: Period-Correct 2002 Build Guide
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