What is an AI datacenter?

An AI datacenter is a facility purpose-built or retrofitted for GPU and accelerator workloads — typically at rack densities above 30 kW, with liquid-cooling readiness and high-bandwidth fabric (InfiniBand NDR, NVLink, or Spectrum-X). At least 40% of IT load runs AI training or inference on GPUs such as NVIDIA H100, H200, B200, or GB200 NVL72.

Which datacenter has the most GPUs?

As of 2026, xAI Colossus in Memphis, Tennessee holds the title of the world's largest single-site GPU deployment, with more than 200,000 NVIDIA H100 and H200 GPUs in one InfiniBand domain. Meta Hyperion (Louisiana) and OpenAI Stargate Abilene (Texas) are scaling toward gigawatt-class deployments that will overtake it within the next 18 months.

What is the largest AI cluster?

xAI Colossus is the largest contiguous AI training cluster in 2026, exceeding 200,000 NVIDIA H100/H200 GPUs on a single InfiniBand NDR 400G fabric. Meta's Hyperion build and OpenAI's Stargate program are constructing multi-site fabrics that will exceed one million accelerators across coupled campuses by 2027.

Which GPU cloud is cheapest for H100?

On-demand: Together AI ($1.75/hr) and Voltage Park ($1.89/hr) lead. Reserved 1-year: Voltage Park ($1.20/hr) and Crusoe ($1.39/hr) are typically lowest. AWS p5 sits at the top of the price stack at ~$4.10/hr on-demand.

How is Datacenter.computer different from a datacenter directory?

Datacenter.computer is an agent-readable intelligence layer, not a directory. It normalizes pricing, capacity, power, fabric, and latency across 240+ facilities and 40+ operators into a single queryable graph for AI agents, traders, and procurement teams.

[DC.COMPUTER] Layer 5 · Colocation

Iron Mountain

Every indexed Iron Mountain datacenter — facility-level capacity, GPU fleet, and country coverage.

Datacenter Portfolio

[AI Summary]

Iron Mountain runs 72 indexed datacenters across 13 countries, totaling 1,270 MW of IT capacity. The portfolio spans colocation tiers and deploys MI300X, B200, A100, H100, H200, L40S.

Facilities

1,270 MW

Total IT

Countries

GPU SKUs

[Facilities · 72]

Facility	Operator	Location	GPU	MW	PUE
Iron Mountain ASHBURN11 West	Iron Mountain	Ashburn, VA, USA	MI300X	16	1.45
Iron Mountain ASHBURN13 East	Iron Mountain	Ashburn, VA, USA	—	34	1.23
Iron Mountain DALLAS24 Park	Iron Mountain	Dallas, TX, USA	—	44	1.35
Iron Mountain DALLAS28 North	Iron Mountain	Dallas, TX, USA	B200	15	1.48
Iron Mountain DALLAS104 Annex	Iron Mountain	Dallas, TX, USA	—	22	1.53
Iron Mountain CHICAGO36 North	Iron Mountain	Chicago, IL, USA	—	41	1.37
Iron Mountain CHICAGO40	Iron Mountain	Chicago, IL, USA	MI300X	7	1.41
Iron Mountain CHICAGO42 East	Iron Mountain	Chicago, IL, USA	—	22	1.53
Iron Mountain CHICAGO43 West	Iron Mountain	Chicago, IL, USA	—	22	1.51
Iron Mountain CHICAGO46	Iron Mountain	Chicago, IL, USA	—	43	1.35
Iron Mountain CHICAGO47 Park	Iron Mountain	Chicago, IL, USA	A100	5	1.37
Iron Mountain LOS19 Campus	Iron Mountain	Los Angeles, CA, USA	—	37	1.32
Iron Mountain NEW61 Annex	Iron Mountain	New York, NY, USA	—	14	1.42
Iron Mountain NEW62 Campus	Iron Mountain	New York, NY, USA	—	29	1.29
Iron Mountain NEW66 North	Iron Mountain	New York, NY, USA	—	18	1.53
Iron Mountain ATLANTA24 West	Iron Mountain	Atlanta, GA, USA	—	13	1.47
Iron Mountain ATLANTA27 East	Iron Mountain	Atlanta, GA, USA	—	18	1.55
Iron Mountain SEATTLE2 South	Iron Mountain	Seattle, WA, USA	—	24	1.31
Iron Mountain SEATTLE8 Annex	Iron Mountain	Seattle, WA, USA	—	17	1.53
Iron Mountain MIAMI21 Campus	Iron Mountain	Miami, FL, USA	—	25	1.34
Iron Mountain MIAMI24 Park	Iron Mountain	Miami, FL, USA	—	25	1.41
Iron Mountain MIAMI29 Park	Iron Mountain	Miami, FL, USA	—	27	1.37
Iron Mountain HOUSTON12 East	Iron Mountain	Houston, TX, USA	MI300X	14	1.55
Iron Mountain HOUSTON20 East	Iron Mountain	Houston, TX, USA	B200	15	1.22
Iron Mountain SAN8 Campus	Iron Mountain	San Antonio, TX, USA	—	6	1.46
Iron Mountain BOSTON24 West	Iron Mountain	Boston, MA, USA	—	23	1.35
Iron Mountain BOSTON29 Annex	Iron Mountain	Boston, MA, USA	B200	5	1.44
Iron Mountain COLUMBUS3 Park	Iron Mountain	Columbus, OH, USA	—	13	1.20
Iron Mountain COLUMBUS7 East	Iron Mountain	Columbus, OH, USA	—	21	1.35
Iron Mountain KANSAS4 Park	Iron Mountain	Kansas City, MO, USA	—	8	1.29
Iron Mountain KANSAS8 Central	Iron Mountain	Kansas City, MO, USA	H100	15	1.24
Iron Mountain KANSAS17	Iron Mountain	Kansas City, MO, USA	—	10	1.53
Iron Mountain NASHVILLE4 South	Iron Mountain	Nashville, TN, USA	—	13	1.55
Iron Mountain SALT6 North	Iron Mountain	Salt Lake City, UT, USA	—	17	1.29
Iron Mountain SALT7	Iron Mountain	Salt Lake City, UT, USA	—	20	1.28
Iron Mountain SALT10 Campus	Iron Mountain	Salt Lake City, UT, USA	B200	12	1.22
Iron Mountain JACKSONVILLE1 South	Iron Mountain	Jacksonville, FL, USA	—	12	1.25
Iron Mountain JACKSONVILLE5 North	Iron Mountain	Jacksonville, FL, USA	—	15	1.28
Iron Mountain JACKSONVILLE6 North	Iron Mountain	Jacksonville, FL, USA	—	2	1.37
Iron Mountain NEW3 West	Iron Mountain	New Orleans, LA, USA	H200	14	1.31
Iron Mountain NEW5 North	Iron Mountain	New Orleans, LA, USA	—	3	1.38
Iron Mountain NEW7 Campus	Iron Mountain	New Orleans, LA, USA	—	14	1.29
Iron Mountain NEW8 Campus	Iron Mountain	New Orleans, LA, USA	—	5	1.45
Iron Mountain TORONTO11 Central	Iron Mountain	Toronto, Canada	B200	6	1.43
Iron Mountain TORONTO19 East	Iron Mountain	Toronto, Canada	H200	5	1.42
Iron Mountain MONTREAL11 West	Iron Mountain	Montreal, Canada	A100	22	1.31
Iron Mountain MONTREAL15	Iron Mountain	Montreal, Canada	—	8	1.47
Iron Mountain MONTREAL23 South	Iron Mountain	Montreal, Canada	—	7	1.46
Iron Mountain LONDON23 East	Iron Mountain	London, United Kingdom	—	47	1.37
Iron Mountain LONDON24 East	Iron Mountain	London, United Kingdom	H200	23	1.50
Iron Mountain LONDON27 North	Iron Mountain	London, United Kingdom	MI300X	15	1.48
Iron Mountain LONDON93 West	Iron Mountain	London, United Kingdom	B200	38	1.27
Iron Mountain LONDON97 Annex	Iron Mountain	London, United Kingdom	—	47	1.32
Iron Mountain LONDON100 Campus	Iron Mountain	London, United Kingdom	—	36	1.24
Iron Mountain AMSTERDAM23 North	Iron Mountain	Amsterdam, Netherlands	—	29	1.26
Iron Mountain AMSTERDAM24 Park	Iron Mountain	Amsterdam, Netherlands	—	28	1.21
Iron Mountain AMSTERDAM92 Annex	Iron Mountain	Amsterdam, Netherlands	—	42	1.35
Iron Mountain MARSEILLE21 East	Iron Mountain	Marseille, France	—	15	1.26
Iron Mountain DUBLIN4 East	Iron Mountain	Dublin, Ireland	—	7	1.46
Iron Mountain DUBLIN8 Central	Iron Mountain	Dublin, Ireland	—	9	1.47
Iron Mountain BRUSSELS9 Park	Iron Mountain	Brussels, Belgium	—	8	1.51
Iron Mountain BRUSSELS16 South	Iron Mountain	Brussels, Belgium	L40S	10	1.53
Iron Mountain STOCKHOLM21 North	Iron Mountain	Stockholm, Sweden	—	4	1.39
Iron Mountain WARSAW23 Park	Iron Mountain	Warsaw, Poland	—	21	1.35
Iron Mountain PRAGUE13 East	Iron Mountain	Prague, Czechia	—	2	1.39
Iron Mountain PRAGUE18 Central	Iron Mountain	Prague, Czechia	A100	7	1.46
Iron Mountain LISBON12 Central	Iron Mountain	Lisbon, Portugal	—	15	1.28
Iron Mountain LISBON14 Park	Iron Mountain	Lisbon, Portugal	B200	10	1.55
Iron Mountain BELGRADE1 East	Iron Mountain	Belgrade, Serbia	—	8	1.51
Iron Mountain BELGRADE6 Central	Iron Mountain	Belgrade, Serbia	—	7	1.50
Iron Mountain LUXEMBOURG1 Campus	Iron Mountain	Luxembourg, Luxembourg	—	11	1.53
Iron Mountain LUXEMBOURG9 Central	Iron Mountain	Luxembourg, Luxembourg	—	8	1.48

[FAQ]

How many datacenters does Iron Mountain operate?

72 indexed facilities totaling 1,270 MW across 13 countries.

Which GPUs does Iron Mountain deploy?

MI300X, B200, A100, H100, H200, L40S

In which countries does Iron Mountain operate?

Belgium, Canada, Czechia, France, Ireland, Luxembourg, Netherlands, Poland, Portugal, Serbia, Sweden, USA, United Kingdom

[Knowledge Graph]

Company → Datacenter → GPU → Customer → Industry

Every entity on this site is cross-linked. Follow the graph from operators down to specific facilities, GPU clusters, customers, and sectoral context.