NS DM 90

NS DM 90 refers to a type of diesel multiple unit (DMU) train formerly operated by Nederlandse Spoorwegen (NS), the principal passenger railway operator in the Netherlands. The "DM" stands for Diesel Materieel (Diesel Equipment), indicating that the train is powered by diesel engines. The "90" designates that the trains were built in the 1990s.

These DMUs, also known as "Buffel" (Buffalo) due to their robust design and appearance, were primarily used on regional lines, especially in the northern and eastern parts of the Netherlands. They were known for their reliability and comfortable seating.

The NS DM 90 trains typically consisted of two carriages and were designed for shorter journeys with frequent stops. They featured low floors in the middle section of each carriage to improve accessibility for passengers with limited mobility and those traveling with bicycles or luggage.

The service life of the NS DM 90 fleet with Nederlandse Spoorwegen concluded after several years of operation. Some units have been sold to other railway operators for continued service elsewhere.