HP N1M40AA - Parallel adapter - PCIe -
HP (0889296884859 / N1M40AA) - HP ProDesk 400 G2.5 SFF - DB-25 - PCIe - Business - PCIe x1 - Parallel - Data transfer rate: 1.8 MBps - Depth: 121 mm - Height: 79 mm - Width: 18 mm - Internal - Linux operating systems supported
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HP N1M40AA Parallel Adapter – PCIe x1 Expansion Card
The HP N1M40AA is a dedicated parallel port adapter that plugs into a single‑lane PCI Express (PCIe) x1 slot. Designed for HP business workstations and servers, it delivers a reliable DB‑25 parallel interface while maintaining full compatibility with modern Linux and Windows operating systems.
Key Design Features
- Internal Build: The card is fully internal, meaning no external brackets or cables are required. It mounts directly into the motherboard’s PCIe x1 slot.
- Plug & Play: No additional drivers are needed on supported systems. The adapter registers automatically during boot, simplifying deployment in enterprise environments.
- FIFO Buffer: Equipped with a 16‑byte FIFO (First In, First Out) buffer to smooth data flow and reduce latency when communicating with legacy devices such as printers or industrial controllers.
- Noise Reduction: Built-in noise suppression circuitry ensures clean signal integrity even in electrically noisy server rooms.
Physical Specifications
| Dimension (mm) | Width: 18 | Depth: 121 | Height: 79 |
|---|---|
| Connector Type | DB‑25 parallel output |
| PCIe Interface | x1, PCIe 2.0 standard |
| Data Transfer Rate | Maximum: 1.8 MB/s (≈0.0018 Gbps) |
| Ports Quantity | 1 parallel port |
Compatibility Matrix
The adapter is engineered to fit seamlessly into HP’s business line of systems, including:
- HP ProDesk 400 G2.5 SFF
- HP 280 series workstations
- HP Z1 G9 and Z2 G9 workstations
- HP EliteDesk 80X G8, Elite600 G9, Elite800 G9
- HP Pro400 G9 servers
- Other HP models that support PCIe x1 slots and require a parallel interface.
Operating System Support
The N1M40AA is fully compatible with:
- Linux distributions: Kernel drivers are included in the Linux kernel starting from version 2.6.32, ensuring out‑of‑the‑box functionality.
- Windows operating systems: Windows 10/11 and earlier versions support the adapter via standard Plug & Play drivers supplied by HP.
Use Cases in Enterprise Environments
While modern computing has largely moved away from parallel ports, many industries still rely on legacy equipment. The HP N1M40AA enables:
- Industrial automation: Connecting to PLCs or CNC machines that use DB‑25 interfaces.
- Printing solutions: Supporting older dot‑matrix or thermal printers in corporate settings.
- Data acquisition: Linking to legacy sensors or measurement devices that output parallel data streams.
- Retrofit projects: Extending the life of existing hardware without replacing entire systems.
Installation Guide
- Power down the HP system and disconnect all cables.
- Open the chassis and locate an available PCIe x1 slot.
- Insert the N1M40AA firmly into the slot, aligning the edge connector with the slot pins.
- Secure the card to the case using the provided screw or retention clip.
- Reconnect power and boot the system. The adapter should be detected automatically.
Performance Highlights
The adapter’s 1.8 MB/s throughput is adequate for most legacy applications, while its low latency FIFO buffer ensures that data packets are transmitted without delay. Noise reduction features maintain signal fidelity even in high‑interference environments.
Conclusion
For enterprises that still depend on parallel port devices, the HP N1M40AA provides a robust, low‑maintenance solution that bridges modern PCIe infrastructure with legacy hardware. Its compact size, plug‑and‑play nature, and broad OS support make it an ideal choice for maintaining operational continuity without costly system overhauls.
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| Tags | Parallel Port Card |
| Identifiers | |
| Brand |  HP is a technology company that creates a wide range of products, including personal computers, printers and scanners, and software. |
| Model | HP N1M40AA |
| MPN | HP N1M40AA |
| ID | 8511844 |
| Dimensions / Weight | |
| Key Features | |
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Compatibility A list of brand names, model numbers or product types that the item is compatible with. Each entry should be separated by commas to allow easy searching and comparison across products.
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HP ProDesk 400 G2.5 SFF |
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Connector Type The physical interface or port used to connect a device to another component or system, such as USB, HDMI, RJ‑45, 3.5 mm jack, or fiber optic connectors. It indicates the shape, pin count, and electrical characteristics that determine compatibility with cables, adapters, and peripherals.
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DB-25 |
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Data transfer rate The maximum theoretical speed at which a device can send or receive data, expressed in bits per second (bps) or its multiples such as kbps, mbps, gbps, etc. It represents the upper bound of throughput under optimal conditions and is useful for comparing performance across devices and interfaces.
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1.8 MBps |
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Data transfer rate max The highest theoretical speed at which a device can send or receive data, expressed in bits per second (bps) or its multiples such as kbps, mbps, gbps, etc. It represents the upper bound of throughput under optimal conditions and is useful for comparing performance across devices and interfaces.
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0.0018 Gbit/s |
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Depth The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
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121 mm |
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FIFO (First In, First Out) The amount of memory allocated for a First In, First Out (FIFO) buffer, expressed in bytes. It indicates how many data units can be stored before processing or transmission occurs.
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16 B |
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Height The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
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79 mm |
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Host interface List of physical or logical interfaces that allow communication between a host device and other components, such as USB, PCI Express, SATA, M.2, Ethernet, Thunderbolt, or similar standards.
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PCIe |
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HP segment Indicates the target market segment for a product, such as "Business", "Home", or "Small‑medium business". This attribute helps customers quickly identify the intended user group and typical use case of the item.
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Business |
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Interface List of physical or logical interfaces that allow communication between a hard drive and other devices, such as SATA, M.2 PCIe, U.2, SAS, NVMe, or other standard connections.
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PCIe x1 |
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Internal Indicates whether the product is designed to be installed inside a computer system, such as an internal hard drive, SSD, or network card. A value of "Yes" means it can be mounted within the chassis; "No" indicates it is intended for external use.
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Yes |
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Linux operating systems supported List of Linux operating systems that the product can run or support, including specific versions and architectures when relevant. Each value represents a distinct Linux distribution or kernel version supported by the hardware or software.
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Yes |
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Output interface List of physical or logical interfaces that a product can use to send data, video, audio, or other signals to external devices, such as USB, HDMI, DisplayPort, VGA, Ethernet, Thunderbolt, and similar standards.
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Parallel |
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Plug and play Indicates whether the product can be used immediately after installation without requiring additional configuration or drivers.
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Yes |
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Windows operating systems supported A list of Microsoft Windows operating system versions that the product is compatible with, including any relevant architecture or edition information.
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Yes |
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