Tyan M2042 PCI Riser Card 3-Slot Server Motherboard Expansion Board

Tyan M2042 PCI Riser Card 3-Slot Server Motherboard Expansion Board

The Tyan M2042 is a PCI riser card that adds three full-length PCI expansion slots to compatible Tyan server and rackmount motherboards. Riser cards like the M2042 are used in low-profile and 1U/2U rackmount chassis where standard vertical card installation is not possible, redirecting expansion slots horizontally to fit within tight enclosure heights. The card connects via a PCI edge connector on the motherboard and presents three standard PCI slots for add-in cards.

Specifications & What's Included

• Model: Tyan M2042
• Type: PCI Riser Card / Expansion Board
• Number of Expansion Slots: 3 x PCI
• Bus Interface: PCI (connects via PCI edge connector)
• PCB: Green, full-size riser format
• Visible ICs: Small surface-mount controller IC (U5) and supporting passive components
• Silkscreen markings: M2042, slot labels SLOT1 / SLOT2 / SLOT3 visible on PCB
• Included: Riser card only — no mounting hardware or accessories

Applications

PCI riser cards are standard components in 1U and 2U rackmount server chassis, where the limited vertical clearance of the enclosure prevents expansion cards from being installed upright directly on the motherboard. The M2042 is designed for use with Tyan server motherboards in rackmount and pedestal server builds from the early-to-mid 2000s PCI era, before PCI Express became the dominant expansion bus. Systems using this type of riser would typically run server-class add-in cards such as SCSI controllers, network interface cards, and storage adapters. These riser cards remain sought after by administrators maintaining legacy Tyan server hardware or building compatible systems from surplus parts.