be quiet! Light Loop IO LCD 240mm Black CPU Liquid Cooler
Bottom line: The be quiet! Light Loop IO LCD 240mm Black CPU Liquid Cooler is a specs-and-price decision rather than a crowd-consensus one in the cooling & fans category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Pros & Cons
Pros
- ✓ Backed by be quiet!'s warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored be quiet! Light Loop IO LCD 240mm Black CPU Liquid Cooler using a rating × review-volume × price-fit model applied to published specs and reviews across the cooling & fans category. be quiet!'s cooling & fans 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 cooling & fans 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
- The Light Loop IO LCD 240mm Black features a striking cooling unit with a 2.1-inch IPS display, 500 nit brightness and vivid RGB lighting, offering extensive customization for system stats, images, videos, and visual presets.
- Jet plate, pump and cold plate are engineered for high efficiency and whisper-quiet operation. A precision metal jet plate boosts coolant flow, while the dense fin stack and optimized motor circuitry ensure excellent heat dissipation.
- The setup includes 2 daisy-chained Light Wings LX PWM high-speed fans. Each fan uses 16 evenly placed LEDs and 9 airflow-optimized blades, reducing turbulence while delivering strong cooling performance even under heavy workloads.
- Built for intensive applications, the Light Loop IO LCD 240mm Black maintains low CPU temperatures under sustained maximum load. Its powerful cooling capacity ensures reliable stability for demanding creative tasks and extended gaming sessions.
- The included IO Controller combines ARGB, PWM and display control through a single cable, with hidden fan wiring along the tubes. An easy-access refill port and included coolant support safe refilling and long service life.
Full Specifications
| Brand | be quiet! |
|---|---|
| Model | BW34 |
| Material | Aluminum, Copper |
| Noise Level | 45.6 db |
| Part Number | BW34 |
| Material Type | Aluminum, Copper |
| Cooling Method | Water |
| Number of Items | 1 |
| Compatible Devices | Intel: 1851 / 1700 / 1200 / 1150 / 1151 / 1155 AMD: AM5 / AM4 |
| Included Components | Water Cooling System |
| Power Connector Type | 4-Pin |
| Maximum Rotational Speed | 2100 rpm |
| Item Dimensions L x W x H | 11"L x 5"W x 2"H |
| Full listing title | be quiet! Light Loop IO LCD 240mm Black CPU Liquid Cooler | For Overclocked Systems, 2x Light Wings LX PWM High-Speed ARGB Fans, Cooling Block With ARGB Lighting And IPS Display |
Ready to buy?
be quiet! Light Loop IO LCD 240mm Black CPU Liquid Cooler | For Overclocked Systems, 2x Light Wings LX PWM High-Speed ARGB Fans, Cooling Block With ARGB Lighting And IPS Display 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.
Related Cooling & Fans
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- 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
- How to Build a Windows 98 Retro PC in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- Silicon Motion PCIe 6.0: Nvidia AI Drives Consumer Storage
- Best Gaming Webcam and Microphone Bundle for Streamers in 2026
- ComfyUI for local image generation — the 2026 setup guide
- Old Massive Chieftec Full Tower: Homelab Gem or Junk?
- Best Controller for Fighting Games on PC in 2026: HORI HORIPAD vs 8BitDo Pro 2 vs DualSense
- Two RTX 3060 12GB vs One Bigger GPU for Local 70B Models
- Cloudflare CEO: The Web's Future Is 'Pay to Crawl' as Bots Overtake Humans
- Best SATA SSD to Upgrade Your PS4 Pro in 2026
- Best Steam Deck Docked Setup for a 4K Desk in 2026: Dock, Monitor, Storage
- Best 4K Monitor for Forza Horizon 6 on PC (2026)
- RTX 5090 AI Build Guide: CPU, RAM, PSU & Cooling for Local Inference
- GLM-5.2 vs Claude Opus 4.7: Open-Weights Value on Local GPUs
- Samsung 870 EVO vs WD Blue SN550: Best Storage for Forza Horizon 6 Fast Loading
- Rescue a Dying Vintage IDE Drive by Cloning It to CompactFlash
- Best Game Controller for PC and PS5 in 2026
- Best Budget Gaming Mouse Pad for Esports in 2026
- Qwen3.6 35B on a Single RTX 3060 12GB: What Actually Fits
- LLM-Driven Driver Install on Windows 98: How Claude Walks Voodoo + Sound Blaster Setup
- Running GLM-5.2 Locally on an RTX 3060: Ollama VRAM + tok/s
- Ryzen 5 5600G APU for Local LLM Inference in 2026: What You Can Actually Run
- RTX 3060 12GB vs RTX 3060 Ti 8GB for Local LLMs: VRAM Beats Bandwidth Every Time
- ComfyUI on an RTX 3060 12GB: Local Image Generation Setup
- Raspberry Pi 4 8GB vs Pi Zero W for RetroPie: Which Board Wins?
- Sound Blaster AWE32 vs AWE64: Which Belongs in Your DOS Build?
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