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Data center project · DeSoto County, Mississippi

xAI MACROHARDRR data center (2400 Stateline Road)

Under construction · xAI bought an 810,000 sq ft warehouse at 2400 Stateline Road in Southaven. The governor billed the conversion as a data center investment of more than $20 billion, the largest in state history. Also known as: Macrohardrr, Macro-harder, xAI Southaven data center.

Read The xAI Colossus File →← Mississippi data centers
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Status
Under construction · as of Jan. 8, 2026
Location
Southaven · DeSoto County
Status note
Announced Jan. 8, 2026 as an existing-building retrofit with operations targeted for February 2026. No record found confirming it is operating.
Power
Not reported
Musk said it would bring xAI training compute to almost 2 GW in total; no site-specific MW figure found.
Floor area
810,000 sq ft
Land
105 acres
Investment
More than $20 billion (governor's office)
Developer and team
xAI (SpaceXAI)
End user
xAI
Utility
Not documented; near the MZX Stanton Road plant
Incentives
MDA Data Center Incentive (sales/use tax exemption); city and county fee-in-lieu agreements (Southaven agreement dated Jan. 9, 2026; terms not published)
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.

Updates, newest first

  1. Jan. 9, 2026 Southaven signed a fee-in-lieu agreement with xAI. (Mississippi Today, Oct. 7, 2026)
  2. Jan. 8, 2026 Gov. Reeves announced the investment of more than $20B, MDA incentive approval and local fee-in-lieu support, with operations targeted for February 2026. (Office of Gov. Tate Reeves, Jan. 8, 2026; WLOX / Gray, Jan. 8, 2026)
  3. Dec. 30, 2025 Musk announced the building purchase and the MACROHARDRR name. (DeSoto Times-Tribune, Dec. 31, 2025)
  4. Dec. 16, 2025 Southaven aldermen approved an MOU with xAI tied to the data center; MZX agreed to pay $3.46M for road widening near the plant and data center. (Mississippi Today, Oct. 7, 2026)

Conflicts and open questions

  • WMC placed 'Macro-harder' along Tulane Road next to Colossus 2, which conflicts with the 2400 Stateline Road address from DeSoto Times; the location needs a deed check.
  • Operational status not confirmed. Coordinates are approximate.

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