How LiquidCool Solutions saves Facebook $69 million in build costs for a datacenter and saves them $1M or more a year in energy savings.

1. REVOLUTION
IN THE DATA CENTER
MOVING FROM AIR COOLING TO LIQUID COOLING
Proprietary & Confidential 2016, LiquidCool Solutions, Inc.

2. LiquidCool Solutions: the market leader!
» Rich and deep history of starting the liquid
submersion cooling movement
» World’s first commercially available liquid
submersion computing platforms
» Over 40 patents around submersion cooling
» The only company to make submersion
cooling practical, scalable & award winning

3. 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Efficient Server Power
On-Board UPS
Carbon Neutral
Warehouse Scale
Datacenter
Containerized Datacenter
First Public PUE
Reporting
Facebook Open
Compute Project
Free Air Cooling
The Evolution of LiquidCool Solutions
Hardcore
Computer, Inc.
Founded
Hardcore
Computer
becomes
LiquidCool
Worlds First
Submersion
Desktop PC
“Reactor”
Worlds First
Submersion
Workstation
“Detonator”
Worlds First
Submersion
Rack Server
“LSS”
Worlds First
Submersion
Data Center
Module
Cloud Computing
Consolidation
Wells Fargo
Invests
Intel
Partnership
Rugged Tier
Computing
TROPEC
Validation
Core
Coolant
Developed
40 patentsLiquidCool Solutions Milestones
Market Milestones
IBM 2 Phase
Cooling
Google Dataflow
NREL
Validation

4. Over the past 10+ years LiquidCool has built
the most energy efficient, cost effective and
practical approach to data center cooling

5. Fans are the problem
Fans Waste Energy
• 15% of total datacenter energy is used to
move air
• Fans in the chassis can use up to 20% of power
at the device level
• Fans are inefficient and generate heat that
must be removed
Fans Waste Space
• Racks need room to breathe
• CRAC units require space around the
racks
Fans Reduce Reliability
• Fans fail
• Thermal fluctuations drive solder joint failures
• Vibration frets electrical contacts
• Fans expose electronics to air
• Oxidation/corrosion of electrical contacts
• Sensitivity to ambient particulate, humidity
and temperature conditions

6. Air is an insulator, not a coolant
» Cooling with Air is Expensive
» Air Cooling Wastes Space
» Air Cooling Limits Power Density
» Air Cooling Reduces Reliability
• Fans Fail
• Air Causes Oxidation and Corrosion
• Air Enables Large Temperature Swings
» Air Cooling Wastes Energy
• Up to 15% of Total Power is used to Move Air
• Up to 20% More Power is used by Rack Fans
• Fans Generate Heat that must be Dissipated

7. LiquidCool’s Elegant Solution
Total liquid immersion in a eco-friendly dielectric fluid
• “Cool” liquid is circulated directly to hottest components first. Remaining
components are cooled by bulk flow as the dielectric liquid exits the chassis.
• Directed flow is a key differentiator
• No fans or other moving parts in the chassis
• Rack-mounted devices are easy to maintain
• Off-the-Shelf Components
Up to 125°F
Up to 110°F
No Moving Parts – Flow Rate: 0.25 gal / min
20 GRANTED PATENTS
20 PATENTS PENDING

8. Power-to-Cool reduced by up to 98%

9. Source: LiquidCool Solutions Power-to-Cool White Paper, January 2013

10. No water needed
No water used for cooling when the ambient dry bulb
temperature is less than 110oF

11. LCS Cooling System Elements
• Pump supplies “cool” dielectric liquid to multiple IT racks
• If there is no energy recycling option, “hot” fluid is circulated to an evaporative
fluid cooler
• Incoming “cool” fluid can be as warm as 110oF for most applications, which
completely eliminates the need to use water almost anywhere in the world
Cooling Without Water

12. Saves Space
(1) 25kW 42U Rack
64, 400W Servers
Can Go Anywhere
4-8kW 42U Racks
156-200W Servers (7kW for onboard fans)
Needs an Air Conditioned Room
Air Cooled

13. Eliminate Costly Infrastructure
What LCS Does Not Need
• Mechanical Refrigeration
• Cooling Towers
• Air Handlers
• Humidity Control
• Blade and Rack Fans
• Mixing Dampers
• High Ceilings
• Hot Aisles
• Noise
• Water
• Very much space

14. Case Study: Facebook (Altoona, IA Data Center)

15. Facebook Data Center after LCS
LCS saves Facebook (MILLIONS)
» LCS eliminates the need for a 3 story
building
» LCS uses a fraction of the floor space
» LCS eliminates 1.4 million cubic feet of
air per minute
» LCS eliminates DX units for
dehumidification when indoor RH
exceeds 85%
» LCS eliminates evaporative cooling
when outdoor temperature is over
85°F
» LCS saves not only upfront capex but
also the energy to run the facility
LCS eliminates all of that!

16. A Custom Solution for Facebook
LCS custom server for Facebook
» Modified OCP Rack w/ 7 Processors
and 14 Storage Servers
» Ultra, ultra high-density enclosure
» Proprietary cooling for spindle drive
bays and in-rack storage
LiquidCool Clamshell Server

17. Increased Reliability and Longevity

18. Increased Reliability and Longevity
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19. Lower Maintenance Cost
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20. Hearing Safety
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21. 3rd Party Validation
Lawrence Berkeley National Laboratory
• Lawrence Berkeley National Laboratory assessed LiquidCool technology for the US Navy’s
Transformative Reductions in Operational Energy Consumption (TROPEC) program for continuous
operation of servers and communication/network equipment in tropical environments with no
mechanical cooling.
• The Coefficient of Performance for the LCS system was 49.9 at full load compared to 1.6 for
current practice, 30 times better.
National Renewable Energy Laboratory
• Preliminary data from the testing program, currently underway, suggest that more than 85% of
the electric energy used by LCS servers can be recycled to create hot water for building heat.
• The test program will conclude in November at which time the LCS rack and servers will be
moved to NREL’s high performance computing center.
Intel Corporation
• Confirmed that the LCS dielectric fluid does not have a deleterious effect on Intel processors,
and all processor cores and memory operated well within the normal operating range even at
coolant temperatures of 122°F
• As a result of this study and other investigations it undertook, Intel committed to extend normal
warranty terms to processors immersed in the dielectric fluid LCS employs.

22. Competition
Three Liquid Cooling Technologies:
1. Cold Plates – Requires Fans
– Shifts heat from processors but does not save much energy
– Mechanical cooling needed above 85oF
– Maximum rack density is 30-kilowatts
2. In-Row Cooling – Requires Fans
– Makes the room smaller
– Mechanical cooling above 80oF
– Maximum rack density is 35-kilowatts
3. Total Immersion in a Dielectric Fluid – No Fans; > 75kW rack density
Green Revolution Cooling
Iceotope
3M (Allied Control and SGI)
LiquidCool Solutions

23. The LiquidCool Advantages
LiquidCool Can Have Any Shape or Size
Green Revolution, Iceotope, 3M
LiquidCool Requires No Water in Datacenter
Iceotope, 3M
LiquidCool Scales vertically or horizontally
Green Revolution, 3M
LiquidCool is Easy to Swap & Maintain Devices
Green Revolution, Iceotope, 3M
LiquidCool Has Harsh Environment Deployments
Green Revolution, 3M
LiquidCool is on Par With Air Cooling (Low Cost)
Iceotope, 3M

24. Customer Installations
Liquid Submerged Server Rack
• University of Minnesota Supercomputing Institute
• Microsoft Technology Center - Minneapolis
• Dedicated Computing
• National Renewable Energy Laboratory
Rugged Terrain Computer (started shipping in August, 2015)
Installed
• JBS Tannery
• George Washington University
• Stanford SLAC National Accelerator Laboratory
• Colorado Judicial Courts
• Brookdale Health
Scheduled
• CISCO Systems
• MITRE
• CoreFocus
• United Healthcare
• Wisconsin Electric

25. Product Mix
Rugged Terrain Computer (RT)
High performance computer that is ideal for factory floors, construction sites, etc.
Manufactured by Dedicated Computing.
Liquid Submerged Server (LSS Rack)
High density, easy to maintain, Cooling PUE<1.02
Manufactured by Dedicated Computing.
Explorer
Rugged, mobile 4kW compute system that is ideal for field data processing
Three heat rejection options
Manufactured by Dedicated Computing
Clamshell Server
Low cost Open Compute Project servers for cloud datacenters
Manufactured by Herold Precision Metals
200 Kilowatt Prefabricated Module (PFM)
Unique computing appliance that can be transported by cargo plane
Johnson Controls is the module manufacturer and project integrator
750 Kilowatt PFM
Unique computing appliance that replaces five air-cooled PFMs
Johnson Controls is the module manufacturer and project integrator

26. LSC-RT Rugged Terrain Computer
LSC-RT features:
• Internal High-Efficiency Pump
• Sealed and fanless system
• IP67-rated I/O and Power
connections
• Supports Intel Core-i3/i5/i7 CPUs
up to 84W
• Operating temperature range:
10°F - 110°F
• Dual Passive Radiators
• USB 2.0, HDMI, 1Gb Ethernet
ports

27. LSC-RT Rugged Terrain Computer Advantages

28. Explorer Server Rack
LCS Explorer: 8 or 16 High-performance servers in a modular
configuration of shock-isolating rack cases
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Redundant
8kW CDUs
Room for
rugged switch
and storage
8X LSS
Servers

29. Battlefield Tested and Ready
LiquidCool Solutions Participated
In Joint Military Exercises at
Emerald Warrior 2015

30. LSS Rack
Markets: Greenfield and Datacenter
Retrofits, Prefabricated IT Modules
Features:
• 36-kilowatt rack, equivalent to four air-
cooled racks
• Electronics protected from humidity,
dust, oxidation, and corrosive gases
• Energy Efficient Cooling PUE<1.02
• Scalable
• Easy to Maintain
• No Moving Parts
• No Water

31. Modular Data Centers
Global Modular Datacenter Market
Expected to Grow from $8.37 Billion in
2015 to $35.11 Billion by 2020 at a CAGR
of 33.2%
--- Research and Markets Organization 6/25/15

32. LiquidCool Clamshell Rack
Target Market: Cloud Datacenters
Features:
• Up to 75-kW and 120 servers per rack
• Open Compute Project architecture
• Power and I/O outside the wet area
• Energy Efficient – Cooling PUE<1.03
• No water
• Easy to Maintain
• No Moving Parts

33. LiquidCool 200-Kilowatt Modular Data Center
Markets: Temporary Deployments, Military,
Catastrophic Weather Events, Filmmaking
Features:
• 200-kilowatt Prefabricated Module designed
to be transported by cargo plane
• Rapid field set up
• Energy Efficient – Cooling PUE<1.03
• No water
• Easy to Maintain
• Electronics protected from humidity, dust,
oxidation, and corrosive gases
Overall dimensions: 12’ x 12’ x 20’

34. LiquidCool 750-KW Prefabricated Module
Overall dimensions: 12’ x 12’ x 42’
Markets: Enterprise Datacenters, Research
Features:
• Replaces four air-cooled modules
• Energy Efficient – Cooling PUE<1.03
• No water
• Easy to Maintain
• No Moving Parts
• Electronics protected from humidity, dust,
oxidation, and corrosive gases

35. Data Center Energy Savings
• In a typical datacenter, roughly
38% of energy costs go to
HVAC cooling and fans
(ASHRAE and DOE, 2012)
• Using LiquidCool technology,
fans in devices are eliminated
and the need for HVAC cooling
and fans is greatly reduced
• As a result, datacenter energy
costs can be reduced by 50%
or more by using LiquidCool
technology

36. Waste Heat Can Be Reclaimed & Used

37. The Largest Liquid Cooling Patent Portfolio
20 Issued Patents
• Liquid tight server case with dielectric liquid for cooling
electronics
• Extruded server case used with liquid coolant of
electronics
• Computer with fluid inlets and outlets for direct-contact
liquid cooling
• Case and rack system for liquid submersion cooling of an
array of electronic components
• Computer case for liquid submersion cooled
components
• Liquid submersion cooled computer with directed flow
• Gravity assisted directed liquid cooling
20 Additional Patents Pending

38. Executive Team
38
• Herb Zien (CEO) who has over 30 years of experience in project development, engineering
management, power generation and energy conservation. He was co-founder of a firm
that grew to become the largest owner and operator of District Energy Systems in the U.S.
• Rick Tufty (VP Engineering) who is an experienced executive having worked for Dell,
Maxtor, HP and IBM. He holds 11 U.S. and international patents.
• David Roe (Program Manager) who has over 20 years of technical development experience
and is an expert in computer and cooling technologies.
• Daren Klum (co-Founder) who is an experienced executive with 15 years building industry
leading technology products and bringing them to market. Experience includes product
strategy, software, hardware development and executive leadership.
• Stephen Einhorn (Chairman) who is a partner at Capital Midwest Fund, the largest
shareholder.

39. Stephen Einhorn
seinhorn@capitalmidwest.com
414-453-4488
David Roe, Program Manager
david.roe@liquidcoolsolutions.com
507-250-4727
Herb Zien, CEO
herb.zien@liquidcoolsolutions.com
414-289-7171
Rick Tufty, VP Engineering
rick.tufty@liquidcoolsolutions.com
507-535-5829
Daren Klum, Co-Founder
daren.klum@liquidcoolsolutions.com
651-324-4440