DG AB19-M2PCI Manual

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M.2-PCIe adapter board [AB19-M2PCI]

Introduction

Thank you for choosing M.2 – PCIe conversion adapter board [Part Number: AB19-M2PCI] ("adapter

board" in this manual). This adapter board converts 16-lane PCI Express interface to four 4-lane PCI standard

M.2 interfaces. This adapter can be applied to standard Intel or Xilinx FPGA evaluation board so that user can

evaluate NVMe series IP-Core operation and can use for prototype development platform.

Four M.2 connectors are mounted on the component side of the adapter board to accommodate up to four

M.2 SSDs up to 2280 size. On the solder side, 16-lane PCIe (PCI Express) connectors are mounted, and

lanes 0-3/4-7/8-11/12-15 connect to the SSDs mounted on CN1/CN2/CN3/CN4, respectively.

The adapter includes a low-jitter clock generator and reset circuitry to provide clock and reset signals to

PCIe and M.2 SSDs. Power for the adapter and M.2 SSDs is provided by a standard 6-pin type PCI Express

auxiliary power supply. A 12V cooling fan connector is provided for use with fan coolers or other devices that

require forced cooling of the SSD.

The product comes with a supporting accessory to prevent this adapter from tilting when connected to the

FPGA board's PCIe, and can be adjusted with wing nuts to ensure that the adapter is always in the correct

vertical orientation.

This adapter and supporting accessories connected to the FPGA board are shown in Figure 1 below.

AB19-M2PCI

Adapter

Adjustable

wing nut

Supporting

Accessory

The features of this adapter are shown below.



Expansion adapter board for M.2 SSD with 16-Lane PCI Express support



Normal access between FPGA and M.2 SSD in PCIe Gen5, confirmed in actual device operation



Up to four M.2 SSDs up to 2280 size can be installed simultaneously



Power is supplied at +12V from a standard external 6-pin PCIe auxiliary power supply



DC/DC converter inside the adapter generates up to 20A of +3.3V power



Power supply to the adapter and M.2 SSD can be controlled ON/OFF with a switch



Four 12V connectors for SSD cooling fans



PCIe standard 100MHz low-jitter clock source mounted on the adapter



Supplies 100MHz differential clock signals of the same phase to PCIe and four SSDs



Reset is selectable between PCIe-SSD direct connection and reset output on the adapter board via

jumper socket

Manual

Figure-1: AB19-M2PCIe adapter with supporting accessory

[ Rev. 1.0E]

4 x M.2 SSD

FPGA board

Connect aux. PCIe

6pin power cable

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