Lian Li Lancool K12B Midi-Tower Chassis


Lian Li Lancool K12 Midi-Tower Chassis

LanCool insisted on providing highest quality products, and all the products are made in Taiwan , with high standard workmanship and best material.

  • Modular patented anti-vibration HDD cage (3xHDD’s)
  • 9x 5.25” ODD bays
  • PSU mounted high (back), supports large PSU’s
  • 120mm intake (front-adjustable);
  • 120mm exhaust (back-high)
  • Door panel with lock and silent padding
  • Aluminum shell, with steel core

For external finishing, LanCool used the high quality Taiwan made aluminum alloy panel on Metal Boned K12. With hair-line brush and anodized treatment on the surface, to make the external in metallic finishing. Most the sharp edges has been removed, or cover up with protection for maximum safety.


Metal Boned K12 designed for power users, from external design to internal features. The user interface, hardware structure, and finishing, all require to pass a lot of test to ensure highest product quality.
Metal Boned K12 has an aluminum door panel, which formed with high quality aluminum alloy panel in hair-line brushed finishing with 3D steel mesh for maximum air input.
LAN party user need solid chassis which can maintains in good shape to house their hardware during travel. The housing is 0.8mm thick SECC, strength 40% tougher, external in aluminum, easy to cut and modify.

Metal Boned K series has metal structure, for tougher housing, allow carry heavy hardware, built for LAN Party Gamers.
There are 9 x 5.25” rack space in the front of K12, with a Lian Li patented anti-vibration HDD cage, allow user to set the position of the cage to suit their need.


The 120mm fans on Metal Boned K9, features high airflow in low RPM, these fans can cool the system down, with lower noise level. All the fans are 1000RPM
There are anti-vibration spring on the chassis, to reduce the noise which cause by the vibration.
The Lian Li patented anti-vibration HDD cage is easy to use and works, to mount the rubber ring with special thumb screws to the HDD, and it will reduce the noise which cause by the vibration.

There is a 120mm intake fans @ 1000RPM in the front of the HDD cage, input cold air into the case. User can adjust the position of the HDD cage to feed the cool air to certain point.
The rear 120mm exhaust fan at the rear, at 1000RPM, to remove the hot system air out, to keep the system cool.
For more cooling performance, K12 supports liquid cooling system, there are two opening at the rear allow water tubes to pass through.
There are vents on the PCI bracket, allow the better airflow, there are vent holes next to the PCI slots are for optional PCI / Graphics Card Cooler.

Model PC-K12
Case Type Hybrid Mid Tower
Dimensions 210 x 450 x526mm(W x H x D)
Front bezel Material Aluminum
Color Black
Side Panel Plain
Body Material SECC
Net Weight NA
5.25" drive bay (External) 9
3.5" drive bay (External)
3.5" drive bay (Internal) 3(use 5.25' bayx3)
Expansion Slot 7
Motherboard ATX / Micro ATX
System Fan (Front) 120mm Silent fan x1 (@1000RPM)
System Fan (Top) NA
System Fan (Rear) 120mm Silent fan x1 (@1000RPM)
I/O Ports USB2.0 x4 / IEEE1394 x1 /E-SATA x1/ HD+AC97 Audio
This is a condensed version of our shipping and returns policy, to see all the details including our RMA form please go to either of the following links
Domestic Shipping Information (US and Canada)

*Most orders are processed within 24 hours and are checked frequently Monday - Friday. Orders that placed by 2:00PM PST are usually filled the same day. Some items may contain language with additional processing times. You will be contacted if any items you ordered are no longer in stock.

Shipping Times: UPS Map of Times in Transit Click here  First-Class mail can take 2-7 business days and Priority Mail usually takes 1-4 business days.
95%+ of our items ship out of our local warehouse near Seattle, occasionally we'll have to ship from Oregon, California or New Jersey.

Canadian Customers: There are two ways of shipping to Canada through our website.
First Class Package International & Priority Mail International.
Delivery times for Canadian orders can vary due to International restrictions and customs regulations. Most orders are delivered in 5-14 business days but can take longer (21-45 days) during heavy shipping seasons or in the event of a customs hold which is rare

Military: As a courtesy to our Military personal we will ship by US postal service to an APO, DPO or FPO address. Be advised that US Postal Costs on large orders can be more expensive then comparable UPS shipping. 

Will Call pickup: Purchase on line and select "Will Call" as the shipping method and we'll email you when it is ready for pickup (usually next day). 
Note: Not all our items are warehoused locally and available for Will Call, if there any items on your order not available we will contact you asap
Map to our location

Special Delivery Instructions: We cannot give any carrier specific information on where to put your packages or whether to hold/require or not require a signature, you must contact the carrier directly after you receive a tracking or confirmation number.

Tracking: Tracking information will be sent to you as soon as it is available, occasionally there is a 24-72 hour delay in sending tracking if any item(s) had to be shipped from an alternate location.
Note: Tracking numbers will be sent you through an automated e-mail system, the email you submit on your order is the email address you will receive your tracking number .

International Shipping

We offer shipping to a select number of International Countries using UPS and USPS, if you do not see your country listed in the shipping dropdown feel free to contact us.

Whether for refund or replacement please use the RMA form at the bottom of this page for all, if you cannot find your order number or have questions send us a message or give us a call through our contact form

For Refund
Our return period for a refund is 30 days from the date of delivery.
To be eligible for a refund, your item must be in new sellable condition and with any original packaging.

For Replacement
All Coolerguy(s), CG and Cabcool branded items come with a 3 year replacement warranty, all other brands we will replace within 30 days after which you must contact the manufacturer. 

Several types of goods are exempt from being returned
Liquid / Water Cooling systems and related items are subject to the terms and conditions of the manufacturer.
Their returns handled direct, if you need additional information on the warranty or help in contacting them let us know.
Additional non-returnable items:
Gift cards