• Slough 3 Data Center

Our Slough 3 Data Center is located in Slough, a town 20 miles west of central London in Berkshire. Slough is a prominent area for business in the UK due to its low rent costs but close proximity to London. The towns transport links also make it an attractive business location as it boasts good motorway connections and is located approximately 7 miles from London Heathrow Airport. Slough is also the second largest data center cluster, behind London and the inner M25 area, in the UK. Slough 3 provides 1,510 sqm of IT space and 2.7 MW of IT space. As well as being connected to other NTT data centers, the facility is also connected to major carrier hubs in the Docklands which has been established as the UK’s internet hub and the backbone for the global internet network, which facilitates the majority of the London Internet Exchange (LINX). 

At a glance: Slough 3 Data Center

Power supply:

  • Dual dedicated 11,000V (HV) grid connections (2n)
  • Dedicated 2n redundant HV substations​ on-site
  • Minimum n+n (UPS) with battery back-up
  • Back-up generators


  • 24/7 on-site security
  • 3.6m SEAP certified security fence with electrified topper
  • Proximity cards to authorize access levels including man trap access
  • Biometric identification

Technical operations:

  • Monitoring of all critical infrastructure by own operation staff on-site
  • Standardized operation processes with amplified technical systems redundancy in order to ensure maximum reliability


  • Carrier-neutral
  • Carrier mix from global tier 1 supplier to regional supplier
  • Redundant Carrier-Meet-Me-Rooms (CMMR)
  • Redundant cabling infrastructure with diverse paths
  • Pre-cabling to support fast cross connect deployments
  • Inter DC connectivity between NTT data centers for geo-redundant solutions
  • Multi cloud interconnection platform to connect our clients to major cloud service providers such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform