LiquidStack

US-built direct-to-chip CDUs: the 1,350 kW CDU-1MW, the high-flow CDU-2.X and the GigaModular system that scales to 14 MW for NVIDIA Vera Rubin. Trane Technologies completed its acquisition of LiquidStack in March 2026; the company began in two-phase immersion, but its current site lists only CDUs.

CDU HQ Carrollton, Texas, USA Owned by Trane Technologies Checked 9 Nov 2026

Smallest CDU: 1,350 kW LiquidStack CDU-1MW sales brochure (Trane Technologies, Apr 2026), 9 Nov 2026
Largest CDU: 1,350 kW LiquidStack CDU-1MW sales brochure (Trane Technologies, Apr 2026), 9 Nov 2026

Rating conditions

CDU-1MW: 1,350 kW @ 4°C ATD with PG25, 13°C TCS ΔT and 1,500 lpm (1,004 kW at 10°C ΔT); 900 mm wide row unit. GigaModular: up to 14 MW scalable per system with 45°C water; it has no single-unit rating, so it stays out of the range. CDU-2.X: high-flow unit, no published rating.

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Ownership change

Mar 2026

Acquired by Trane Technologies. Trane Technologies completed its acquisition of LiquidStack in March 2026, adding LiquidStack’s direct-to-chip CDUs, from the CDU-1MW to the GigaModular, to its data center cooling line. Source

Datasheet

Source on every value

Technologies Liquid cooling product types the vendor sells today. 'Liquid-to-air CDU' is a sidecar unit or heat dissipation unit that needs no facility water. 'Two-phase cold plate' boils a refrigerant or dielectric on the chip.: CDU 1
Smallest CDU kW Rated cooling capacity of the smallest shipping CDU in the line, as the vendor publishes it. Rating conditions (approach temperature, fluid) are in the spec notes. Blank when not published.: 1,350 1
Largest CDU kW Rated cooling capacity of the largest shipping CDU, as the vendor publishes it. Prototypes and announced-only units are left out and named in the spec notes. Blank when not published.: 1,350 1
GPU platforms (vendor-stated) GPU or rack platforms the vendor itself names as supported, certified or targeted, such as NVIDIA GB200 NVL72 or Vera Rubin. Vendor statements only, each with a source. Blank when the vendor names none.: NVIDIA Vera Rubin (GigaModular) 3
Level Where the products sit: in the server, in the rack, in the row, or at facility scale (skid or facility distribution unit).: In-row, Facility 1
Coolant Coolant on the IT side: water-glycol (PG25 and similar), single-phase dielectric (oils, GTL, synthetic hydrocarbons) or two-phase dielectric or refrigerant.: Water-glycol 1
Max per rack kW Highest rack density the vendor publishes for its own system (immersion tank, in-rack CDU, rear door or OEM rack). Filled only when the vendor states a per-rack figure.: Not published
Rear door max kW Highest published heat removal of the vendor's rear-door heat exchanger, per rack.: Not published
Vendor type Liquid cooling specialist, thermal and HVAC major, power and data center infrastructure major, server OEM, component maker (cold plates, connectors, CDUs sold to OEMs) or fluid supplier.: Specialist 1
Parent company Owner or controlling shareholder when the vendor sits inside a larger group, such as CoolIT under Ecolab or Motivair under Schneider Electric.: Trane Technologies 5
HQ region Region of the vendor's (or brand owner's) headquarters.: North America 1
HQ country Country of the vendor's (or brand owner's) headquarters.: United States 1
Headquarters Headquarters city and country as the vendor states it.: Carrollton, Texas, USA 1
Manufacturing Regions or sites where the vendor says it builds liquid cooling products. Blank when not published.: North America (USA) 1
Key products Main product lines and model names for data center liquid cooling.: CDU-1MW, CDU-2.X, GigaModular CDU 1
Spec notes Rating conditions behind the numbers (approach temperature, water temperature, fluid), conflicting figures, and prototypes left out of the ranges.: CDU-1MW: 1,350 kW @ 4°C ATD with PG25, 13°C TCS ΔT and 1,500 lpm (1,004 kW at 10°C ΔT); 900 mm wide row unit. GigaModular: up to 14 MW scalable per system with 45°C water; it has no single-unit rating, so it stays out of the range. CDU-2.X: high-flow unit, no published rating. 1

Sources

LiquidStack CDU-1MW sales brochure (Trane Technologies, Apr 2026) accessed 2026-11-09
LiquidStack CDU-1MW product page accessed 2026-11-09
LiquidStack GigaModular CDU accessed 2026-11-09
DCD: LiquidStack CDU for direct-to-chip accessed 2026-11-09
Climate Control News: Trane completes LiquidStack deal (4 Mar 2026) accessed 2026-11-09

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