Compact single-slot card; two bracket heights
A 78.2 × 59.6 × 20 mm body integrates 8 CAN FD channels and 4 LIN channels. Full-height or low-profile brackets fit different chassis openings.
PCIe CAN FD cards
BM-PCIE-X8L4
8-channel PCIe CAN FD + 4-channel LIN card
BM-PCIE-X8L4 adds 8 CAN FD channels and 4 LIN channels to desktop, industrial, and vehicle PCs for road data acquisition, parallel endurance tests, node simulation, and HIL benches.
8 channelsCAN FD
12 MbpsCAN FD data phase
> 26,000 fpsReceive throughput
> 26,000 fpsTransmit throughput
Multi-network acquisition and card expansion
Use multiple standard PCIe slots or suitable PCIe Switch expansion to add parallel channels for vehicle acquisition, production endurance tests, and benches. BUSMASTER supports 32 channels; BMCLI supports 64 channels; BMAPI SDK has no fixed channel limit.
Hardware timestamps
Hardware timestamps preserve stable, traceable timing across channels.
Programmable termination
Enable or disable 120 Ω termination in software without rewiring the bench.
One software ecosystem
Use the same device with BUSMASTER, BMCLI automation, or the BMAPI SDK.
Hardware timed transmission and saved tasks
Up to 64 hardware transmit tasks per channel with a 1 ms minimum period; CAN bit rates, tasks, and small replay sequences survive power loss and start automatically. Hardware replay capacity is approximately 250 KB.
Windows, Linux, and Ubuntu development
BMAPI SDK provides x86 / x64 / AArch64 runtimes, API documentation, and C/C++, Python, Qt, C#, VB.NET, and LabVIEW examples. ARM carriers require a standard PCIe slot and matching software.
BMCLI acquisition, node simulation, and HIL
Command-line acquisition, DBC/LDF signals, host log replay, node simulation, and diagnostics; callable by scripts, Claude Code, Codex, and other tools.
SocketCAN and open-source Python interfaces
Linux supports bmsocketcan, cansend, and candump. python-can bmcan covers CAN/CAN FD; use python-lin or BMAPI for LIN. Sources and examples are available through GitHub / Gitee.
| Host interface | PCIe 2.1 X1 |
|---|---|
| External connector | DB25 |
| CAN FD | 8 channels, 5 kbps to 12 Mbps |
| LIN | 4 channels, 1,200 to 19,200 bps |
| Dimensions | 78.2 × 59.6 × 20 mm |
| Weight | < 100 g |
| Operating systems | Windows / Linux |
| Development API | BMAPI SDK |
| Bracket / slot | Standard full-height or low-profile bracket; single-slot width |
| Dimension scope | Height includes the edge connector; 20 mm is occupied thickness including bracket width; DB25 projection excluded |
| Supply / power | PCIe slot power; < 1.5 W |
| Electrical isolation | None; PCIe and bus interfaces share ground |
| Timestamp / timed transmission | 1 μs receive timestamp resolution; 64 tasks per channel, 1 ms minimum period |
| CAN payload / termination | Classical CAN up to 8 bytes; CAN FD up to 64 bytes; software-controlled 120 Ω |
| LIN modes / electrical | Master / slave / monitoring; Classic / Enhanced checksum; software-controlled 1 kΩ pull-up; onboard 12 V, no DB25 auxiliary power output |
| Saved hardware operation | Primarily CAN; settings and small sequences persist and start automatically; approximately 250 KB, PCIe power required |
| Online logs | Saved by the host application; no TF card or on-card standalone file logging |
| Hardware routing / serial port | No hardware frame routing; no serial port on the card |
| Operating / storage temperature | -40 to +85 °C / -40 to +105 °C |
| Software capacity | BUSMASTER: 32 channels; BMCLI: 64 channels; BMAPI SDK: no fixed channel limit |
Throughput applies to one channel with 8-byte CAN FD frames at 1 Mbps arbitration / 12 Mbps data, measured separately for reception and transmission. PCIe and buses share ground. Saved hardware tasks require PCIe power; online logs are saved by the host.
DIMENSIONS
78.2 × 59.6 × 20 mmHeight includes the edge connector; 20 mm is occupied thickness. DB25 projection is excluded. Full-height or low-profile brackets; single-slot installation.
DB25 female mating face; upper row 13 to 1, lower row 25 to 14
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | CAN1_L | 14 | CAN1_H |
| 2 | CAN2_L | 15 | CAN2_H |
| 3 | CAN3_L | 16 | CAN3_H |
| 4 | CAN4_L | 17 | CAN4_H |
| 5 | GND | 18 | LIN1 |
| 6 | GND | 19 | LIN2 |
| 7 | PPS (reserved; not enabled) | 20 | LIN3 |
| 8 | GND | 21 | LIN4 |
| 9 | GND | 22 | CAN5_H |
| 10 | CAN5_L | 23 | CAN6_H |
| 11 | CAN6_L | 24 | CAN7_H |
| 12 | CAN7_L | 25 | CAN8_H |
| 13 | CAN8_L | — | — |
SOFTWARE ECOSYSTEM
Visual analysis, AI automation, and a standard API share the same hardware capabilities.
Use BUSMASTER for visual analysis, connect AI and automation through BMCLI, or build your own applications with the BMAPI SDK. Tutorials, commands, and API references are available online.
On Linux / Ubuntu, use SocketCAN and can-utils. python-can bmcan covers CAN/CAN FD; LIN uses python-lin or BMAPI. Company repositories: GitHub · Gitee
BM-PCIE-X8L4Specifications, software, and purchasing