Hailo-8 Century PCIe: Check the Exact Card, Slot and Bifurcation Requirements

Ordering a multi-chip PCIe accelerator simply because the host motherboard has an open x8 or x16 connector can force a chassis rework or waste the evaluation slot if the card fails to enumerate without motherboard PCIe bifurcation or a 254 mm full-length bay. Verify the exact Hailo-8 Century model number (0802S through 0808S), the host slot’s electrical lane wiring and BIOS bifurcation support, the datasheet revision used for mechanical and thermal budgeting, and the software split between model compilation and runtime execution before committing a purchase order.

Hailo’s current Hailo-8 Century product page (modified 14 June 2026, reviewed 17 October 2026) lists nine PCIe card models spanning 52 to 208 TOPS, and their slot requirements are not identical: 0802S specifies a PCIe ×8 slot (68.5 × 130 mm), 0802, 0803, and 0804 specify a PCIe ×16 slot with bifurcation (68.9 × 167.65 mm, 15W–45W Max TDP), and 0804S through 0808S specify a PCIe ×16 slot (68.9 × 254 mm, 45–75W Max TDP). Because Hailo’s earlier August 2023 Rev 1.1 Product Brief PDF prints different dimensions (69 × 168 mm and 111 × 210 mm) and lower Max TDP ranges (10W–25W and 35–65W), teams must bind every host check to the exact ordering SKU and document revision.

Input or item	What the opened source states	Why it matters
Century SKU family (0802S–0808S)	Hailo product table (modified 14 June 2026): 9 models from 52 to 208 TOPS across Small form factor (HHHL) and Wide host compatibility (HHFL)	Slot width, bifurcation requirement, card length, and TDP depend on the exact model suffix
Slot and bifurcation boundary	Hailo product table: 0802S uses PCIe ×8 slot; 0802/0803/0804 require PCIe ×16 slot with bifurcation; 0804S–0808S use PCIe ×16 slot	A broad distributor summary saying “any platform with 8- or 16-lane PCIe slots” does not waive bifurcation on 0802–0804
Document revision delta	Rev 1.1 PDF (08/23) vs. June 2026 web table: 0804S–0808S shift from 111 × 210 mm (35–65W) to 68.9 × 254 mm (45–75W); 0802–0804 shift from 10W–25W to 15W–45W	Using the older PDF can underestimate chassis length by 44 mm or power budget by 10–20 W
Single M.2 module boundary	Hailo M.2 module page: single Hailo-8 (up to 26 TOPS) in Key M (PCIe Gen-3.0, 4 lanes), Key B+M (2 lanes), or Key A+E (2 lanes)	An M.2 module or third-party carrier is not an official Century SKU
Software environment split	Rev 1.1 PDF software diagram: Hailo Dataflow Compiler runs on the Model Build Computer; HailoRT and TAPPAS run on the Host Processor over PCIe	Target embedded hosts need HailoRT and drivers, not the offline model compiler

A single-slot PCIe card with a finned heatsink sits beside a narrow green M.2 module and a brass standoff on an anti-static mat.

Are you integrating a Hailo-8 M.2 module, a partner card, or a Century PCIe SKU?

Separate the hardware product boundary before checking motherboard slots. Search results for Hailo-8 PCIe hardware routinely mix single-chip M.2 modules, third-party partner cards, community carrier-board experiments, and factory Hailo-8 Century PCIe cards. Specs from one category do not transfer to another.

Hardware category	Opened source and date	Stated processor / TOPS and interface	Host integration boundary to preserve
Hailo-8 Century PCIe Cards (0802S, 0802, 0803, 0804, 0804S, 0805S, 0806S, 0807S, 0808S)	Hailo Century product page (modified 14 June 2026) and Rev 1.1 Product Brief (08/23), reviewed 17 October 2026	52 to 208 TOPS; PCIe ×8 slot (0802S), PCIe ×16 slot with bifurcation (0802–0804), or PCIe ×16 slot (0804S–0808S)	Multi-device PCIe expansion cards (15W–45W or 45–75W Max TDP on current table); verify exact SKU and revision
Hailo-8 M.2 AI Acceleration Module	Hailo M.2 module page, reviewed 17 October 2026	Single Hailo-8 processor, up to 26 TOPS; M.2 Key M (PCIe Gen-3.0, 4 lanes, up to 32 Gbs, 22 × 42/60/80 mm), Key B+M (2 lanes, up to 16 Gbs, 22 × 42/60/80 mm), Key A+E (2 lanes, up to 16 Gbs, 22 × 30 mm)	Single-device M.2 socket module; key notch determines whether the module exposes 4 lanes (Key M) or 2 lanes (Key B+M, Key A+E)
Advantech EAI-1200 and EAI-3300 partner modules/cards	Advantech news release, December 2024, reviewed 17 October 2026	EAI-1200: single Hailo-8 VPU M.2 module (up to 26 TOPS, ~5 W, -40 to 65 °C with optional heatsink). EAI-3300: dual Hailo-8 VPU low-profile PCIe card (52 TOPS, up to 15 W, -40 to 70 °C)	Advantech-engineered assemblies qualified against named Advantech hosts (ARK-1221L, AIR-150, AFE-R770 for EAI-1200; AIR-510, AIMB-279, ARK-3534D for EAI-3300); not Hailo Century SKUs
DIY multi-M.2 NVMe adapter discussions	Hailo Community thread #19237 (4–6 May 2026), reviewed 17 October 2026	User inquiry asking how to mount 8× Hailo m.2 (B+M) modules on an off-the-shelf PCIe card to recreate a 208 TOPS Century card	Forum reply cites either (4x 4x 4x 4x) motherboard bifurcation or a PCIe switch (PLX PEX 8747) and points to a 4-slot M.2 NVMe M-Key card; not a supported Hailo Century BOM

Two common procurement traps appear in that comparison:

1. Do not treat off-the-shelf NVMe M.2 adapter cards as drop-in Century replacements. In the 4–6 May 2026 Hailo Community thread (#19237), a user holding Hailo m.2 (B+M) modules asked which commercial NVMe PCIe carrier could host eight modules. A community reply (Klaus_Koschinsky, 6 May 2026) noted that unless the motherboard supports (4x 4x 4x 4x) PCIe bifurcation, the carrier needs a PCIe switch, stated “Our Hailo-8 Century card uses a PLX PEX 8747 PCIe switch,” and mentioned a 4-slot M.2 NVMe M-Key controller card found on Amazon Germany. That discussion does not establish an approved multi-module hardware design: Key B+M modules expose two PCIe Gen 3.0 lanes (up to 16 Gbs), whereas M-Key NVMe carrier sockets are wired for four-lane M-Key SSDs and carry unverified slot power, cooling, and mechanical constraints.
2. Do not extrapolate one forum mention of a PCIe switch to all nine Century SKUs. Hailo’s own product table explicitly distinguishes Small form factor models that require PCIe ×16 slot with bifurcation (0802, 0803, 0804) from Wide host compatibility models that list PCIe ×16 slot without a bifurcation qualifier (0804S–0808S). Always check the interface row for the specific Century model number being purchased.

Takeaway: Record whether your BOM calls for a factory Hailo-8 Century PCIe card (0802S–0808S), a single Hailo-8 M.2 module (Key M, Key B+M, or Key A+E), or a third-party partner card (EAI-3300) before evaluating host slot compatibility.

Which Hailo-8 Century SKUs require PCIe bifurcation on the host motherboard?

Check the HTML column spans on Hailo’s current product page (modified 14 June 2026, reviewed 17 October 2026) rather than relying on press-release summaries. An October 2026 supplier-submitted announcement on Electronic Design (published 1 October 2026, fetched 8 October 2026) states that Mouser Electronics is shipping Hailo-8 Century PCIe card starter kits delivering up to 208 TOPS “on any platform with 8- or 16-lane PCIe slots,” and notes that the Hailo-8 processor integrates required memory on-die to eliminate external DRAM. While that summary describes the product family at a high level, the official SKU table sets strict per-model slot and bifurcation rules.

Century Model	Group header on Hailo table	# of TOPS	Form factor	Interface (June 2026 web table)	Dimensions (June 2026 web table)	Max TDP (June 2026 web table)	Analytics streams (Basic; Advanced)	Stated availability
0802S	Small form factor	52	single slot, HHHL	PCIe ×8 slot	68.5 × 130 mm	15W-45W	32; 16	Available
0802	Small form factor	52	single slot, HHHL	PCIe ×16 slot with bifurcation	68.9 × 167.65 mm	15W-45W	32; 16	Available
0803	Small form factor	78	single slot, HHHL	PCIe ×16 slot with bifurcation	68.9 × 167.65 mm	15W-45W	48; 24	Available
0804	Small form factor	104	single slot, HHHL	PCIe ×16 slot with bifurcation	68.9 × 167.65 mm	15W-45W	64; 32	Available
0804S	Wide host compatibility	104	single slot, HHFL	PCIe ×16 slot	68.9 × 254 mm	45-75W	64; 32	Available by Hailo’s partners
0805S	Wide host compatibility	130	single slot, HHFL	PCIe ×16 slot	68.9 × 254 mm	45-75W	80; 40	Available by Hailo’s partners
0806S	Wide host compatibility	156	single slot, HHFL	PCIe ×16 slot	68.9 × 254 mm	45-75W	96; 48	Available by Hailo’s partners
0807S	Wide host compatibility	182	single slot, HHFL	PCIe ×16 slot	68.9 × 254 mm	45-75W	112; 56	Available by Hailo’s partners
0808S	Wide host compatibility	208	single slot, HHFL	PCIe ×16 slot	68.9 × 254 mm	45-75W	128; 64	Available by Hailo’s partners

Use the table above to separate three distinct host-slot cases:

• Case 1 — 0802S (52 TOPS, Small form factor): The only Century model listed with a PCIe ×8 slot interface and a shorter 68.5 × 130 mm HHHL envelope on the June 2026 web table. Confirm that your host slot is both mechanically open to accept the card edge and electrically wired with at least 8 active PCIe lanes.
• Case 2 — 0802 (52 TOPS), 0803 (78 TOPS), and 0804 (104 TOPS, Small form factor): All three share the colspan="3" cell PCIe ×16 slot with bifurcation and the 68.9 × 167.65 mm HHHL envelope. A physical x16 connector that is electrically wired as x8, or a motherboard BIOS that cannot split its x16 root port across multiple endpoints, does not satisfy that requirement. Because the public HTML table states PCIe ×16 slot with bifurcation without printing the exact per-model BIOS lane-split pattern (for example, x8/x8, x8/x4/x4, or x4/x4/x4/x4) inside the table cells, obtain the hardware user guide for the exact starter-kit or card part number from Hailo or your authorized distributor and match that lane map against your motherboard BIOS manual before ordering.
• Case 3 — 0804S (104 TOPS) through 0808S (208 TOPS, Wide host compatibility): All five models sit under the Wide host compatibility header, list PCIe ×16 slot without a bifurcation requirement in the interface cell, use the longer 68.9 × 254 mm HHFL envelope (45–75W Max TDP), and are marked Available by Hailo’s partners. Notice that 0804 and 0804S both deliver 104 TOPS and 64; 32 analytics streams, but 0804 is a shorter HHHL card requiring motherboard bifurcation (15W–45W), whereas 0804S is a longer HHFL wide-compatibility card (45–75W).

Where do the 2023 Rev 1.1 Product Brief and the current product table disagree?

Do not average numbers or cherry-pick the smaller dimension when two official Hailo documents disagree. Hailo’s downloadable PDF product brief (Hailo-8-Century-PCIe-Product-Brief-Rev1.1.pdf, copyright 08/23) and Hailo’s live product page (modified 14 June 2026, identical in structure on the English and Japanese pages reviewed 17 October 2026) print different model counts, board dimensions, and Max TDP ranges.

Specification field	2023 Rev 1.1 Product Brief PDF (08/23)	Current Web Product Table (modified 14 June 2026)	Verification action before freezing the chassis or PSU
Models in Small form factor	3 models: 0802, 0803, 0804 (0802S not listed)	4 models: adds 0802S (52 TOPS, PCIe ×8 slot) alongside 0802, 0803, 0804	Confirm whether a 52 TOPS quote is for 0802S (PCIe ×8 slot) or 0802 (PCIe ×16 slot with bifurcation)
Small form factor dimensions	69 × 168 mm across 0802–0804	68.5 × 130 mm for 0802S; 68.9 × 167.65 mm for 0802–0804	Check card-guide length and bracket height against the exact mechanical drawing for the ordered SKU
Small form factor Max TDP	10W-25W across 0802–0804	15W-45W across 0802S, 0802, 0803, 0804	Budget slot power and chassis airflow for up to 45 W unless the supplier confirms a lower limit for your exact revision
Wide host compatibility (0804S–0808S) dimensions	111 × 210 mm (while labeling Form factor single slot, HHFL)	68.9 × 254 mm (Form factor single slot, HHFL)	Resolve the height (111 mm full-height vs. 68.9 mm half-height) and length (210 mm vs. 254 mm) with the partner supplying the card
Wide host compatibility (0804S–0808S) Max TDP	35-65W	45-75W	Verify PCIe slot 12 V / 3.3 V current delivery and thermal dissipation up to 75 W
Heatsink & temperature notes	Footnote: * Products are shipped with a matching heatsink attached; -40°C to 85°C industrial temperature range	-40°C to 85°C industrial temperature range; room-temperature INT8 evaluation footnote	Request the required linear airflow (LFM) and ambient temperature derating curve for the attached passive heatsink

An open industrial chassis shows a PCIe expansion card with a black passive heatsink positioned behind a front chassis intake fan.

Pay particular attention to the 0804S–0808S dimension discrepancy (111 × 210 mm in the 08/23 PDF versus 68.9 × 254 mm on the June 2026 web table). In compact edge servers and industrial PCs, a difference between 68.9 mm (half-height) and 111 mm (full-height) determines whether the card fits a low-profile riser or 2U bay, while an extra 44 mm of card length (254 mm vs. 210 mm) can collide with front intake fans, drive cages, or internal power harnesses. When locking a production BOM, record the vendor document number and revision alongside your component PCN and revision checklist.

Takeaway: Never mix dimensions from the 2023 Rev 1.1 PDF with TDP numbers from the 2026 web table; require the mechanical STEP file or datasheet revision matching the exact manufacturer part number on the quote.

How is software split between the model-build computer and the PCIe host processor?

Separate offline model compilation from target host runtime deployment. Page 2 of Hailo’s Rev 1.1 Product Brief (08/23) illustrates a Comprehensive Software Suite divided into two distinct computing environments: the Model Build Environment (Model Build Computer) and the Runtime Environment (Host Processor connected over PCIe to Hailo-8™ Century).

Environment	System role in Hailo’s Rev 1.1 diagram	Software components listed in opened Hailo sources	What the team must verify before deployment
Model Build Environment	Model Build Computer (offline development workstation/server)	Model Zoo (TensorFlow & ONNX pre-trained and retrainable models), Machine Learning Frameworks (TensorFlow, TensorFlow Lite, Keras, PyTorch, & ONNX), User Models, and Hailo Dataflow Compiler (optimizes and translates trained models to Hailo-8™ format)	Workstation OS/hardware requirements for the Hailo Dataflow Compiler, target model operator support, and INT8 quantization accuracy on your own dataset
Runtime Environment (Host side)	Host Processor (target PC, edge server, or industrial computer with PCIe slot)	User Applications, TAPPAS (full application examples implementing pipeline elements and pre-trained AI tasks), OS IP Stack, and HailoRT (production-grade, precompiled runtime software for the host processor); Supported OS listed as Linux, Windows-10 / 11	Exact Linux distribution/kernel version or Windows build, PCIe driver compilation/signing, HailoRT version, and multi-chip scheduling across all onboard Hailo-8 devices
Runtime Environment (Card side)	Hailo-8™ Century across the PCIe bus	Hailo-8™ Firmware executing on the card’s Hailo-8 processors	Firmware version match with the installed HailoRT release and PCIe link enumeration (lspci / Device Manager) for every onboard processor

An open host unit with a heatsink-equipped card, rear I/O cables, a small camera housing, and a closed laptop on a test bench.

That architectural boundary prevents two common software mistakes during host evaluation:

• Do not size the embedded PCIe host around the Hailo Dataflow Compiler. Model translation to Hailo-8™ format happens in the Model Build Environment. The target Host Processor runs HailoRT, TAPPAS pipeline elements, and User Applications communicating over PCIe with Hailo-8™ Firmware.
• Do not treat Linux, Windows-10 / 11 or framework names as proof of plug-and-play application readiness. Just as we noted in the NXP Ara240 chip and M.2 module integration checklist—where Ara240’s own runtime and model constraints apply only to NXP’s hardware and never transfer to Hailo-8—PCIe device enumeration, runtime service initialization, and compiled-model throughput are separate acceptance gates. On a multi-chip Century card (52 to 208 TOPS), enumeration is only complete when the host OS detects the expected number of Hailo-8 endpoints across the PCIe link. If low-level board bring-up or reset behavior is also under review on a custom host, keep those hardware checks separate using the JTAG vs SWD debug checklist and the STM32 watchdog reset verification log.

What should you record on the host compatibility worksheet before purchasing?

Copy this verification table into your engineering review before ordering a Hailo-8 Century starter kit or partner card. Keep Unknown / verify on the unit in every row until the distributor, partner, or host manual provides the specific evidence for your SKU.

Check item	What to record from your quote and host manual	Default status until documented	Who confirms it
Exact hardware identity	Full ordering part number, Century model (0802S, 0802, 0803, 0804, 0804S, 0805S, 0806S, 0807S, or 0808S), and datasheet revision date	Unknown / verify on the unit	Hailo, authorized distributor (such as Mouser), or Hailo partner
Physical slot & electrical lanes	Host slot mechanical size (x8 or x16), active electrical lane count, and PCIe generation	Unknown / verify on the unit	Host motherboard or industrial PC vendor
PCIe bifurcation or onboard switch	For 0802/0803/0804: required BIOS bifurcation lane-split map and motherboard BIOS support on that exact slot; for 0804S–0808S or 0802S: partner confirmation that host bifurcation is not required	Unknown / verify on the unit	Card supplier (lane map) and host motherboard manual (BIOS setting)
Mechanical envelope	Confirmed card height and length (68.5 × 130 mm, 68.9 × 167.65 mm, 68.9 × 254 mm, or Rev 1.1 69 × 168 mm / 111 × 210 mm), bracket height (HH vs. FH), and single-slot clearance	Unknown / verify on the unit	Card mechanical drawing and chassis CAD check
Power and thermal budget	Applicable Max TDP (15W–45W or 45–75W on June 2026 table vs. 10W–25W or 35–65W in Rev 1.1 PDF), PCIe slot power delivery limit, and required chassis airflow across the attached passive heatsink	Unknown / verify on the unit	Card thermal guide and chassis/PSU spec sheet
Host OS and HailoRT match	Target OS (Linux kernel/distro or Windows 10 / 11 version), matching HailoRT driver/firmware version, and expected endpoint count in lspci / Device Manager	Unknown / verify on the unit	Software integrator using Hailo release notes
Model build & pipeline gate	Target model compiled via Hailo Dataflow Compiler on the build computer, plus end-to-end throughput/latency criterion on the host (Basic vs. Advanced analytics stream definition is not stated in the public table)	Unknown / verify on the unit	Application AI team

Hailo’s product page also cites 400 FPS/W in ResNet50 benchmark model and 32; 16 to 128; 64 Analytics streams (Basic; Advanced), with a footnote stating that evaluation platform figures are measured at room temperature for INT8. Treat those figures as vendor benchmark statements under room-temperature INT8 evaluation conditions, not guaranteed frame rates for your camera resolution, model graph, or enclosure ambient temperature.

Method and sources

Reviewed on 17 October 2026 from opened primary documents: Hailo’s English and Japanese Hailo-8 Century product pages (modified 14 June 2026), Hailo’s downloadable Hailo-8-Century-PCIe-Product-Brief-Rev1.1.pdf (08/23), Hailo’s Hailo-8 M.2 AI Acceleration Module specification page, Hailo Community thread #19237 (4–6 May 2026), Advantech’s December 2024 EAI-1200 / EAI-3300 announcement, and the supplier-submitted Mouser / Electronic Design announcement (published 1 October 2026, archived in the research library on 8 October 2026). Column assignments for the nine Century SKUs were verified directly from the HTML colspan attributes of Hailo’s product table rather than inferred from flattened text.

No Hailo-8 Century card, M.2 module, NVMe carrier, or host motherboard was physically tested for this guide, and no independent frame-rate, power, or thermal measurements were taken. Bench photographs show generic hardware integration contexts and do not depict a named Hailo or partner assembly. Browse more hardware checklists in the Embedded Systems section or the complete article index.