EMS–TRADE Electronics export trading
Two finished industrial computers standing side by side on a pale bench: a slim fanless Mini-ITX enclosure with fine heatsink fins, and a taller rack-mount unit with a closed faceplate

Product category · Group E · embedded & other

Embedded & industrial computing

Twenty-eight models across six form factors, qualified from −20 °C plant floors to +60 °C cabinet air on a 9–36 V DC rail.

Line-up
28
Industrial motherboard models, customisable on an OEM/ODM basis
Form factors
6
2.5-inch, 3.5-inch, 3.5-inch Wide, NANO-ITX, Mini-ITX, NUC
Operating range
−20/+60 °C
Stated range on the wide-temperature boards — ask for test conditions
Power input
9–36 V DC
Surge, reverse-polarity and brown-out protection on the wide-voltage input

01Connection layer · what we supply

Six form factors, chosen by
the enclosure you already have.

28 models6 form factors1 supplier site
Three finished fanless industrial computers in a row, each a closed enclosure with fine heatsink fins and no panels open
Fig. A Finished units, closed. The board never leaves the enclosure on this page.
A slim fanless industrial computer enclosure in close view, matte grey aluminium with heatsink fins and a closed front panel of ports
Fig. B Fanless by design. No moving part to fail in a cabinet.
Two finished industrial single-board computers in closed protective housings on a brushed-steel bench, one with a plain heat spreader across its top face
Fig. C Group E — embedded & other. Two sites, two very different product lines.
Six form factors, one line-up
Form factorWhere it goesWhat decides the choice
2.5-inch SBCCompact instruments and gatewaysThe smallest format in the line-up
3.5-inch SBCKiosks, HMIs and vehicle systemsThe workhorse format
3.5-inch WideThe same jobs with more marginWider input and thermal headroom
NANO-ITXSmall industrial boxes and signageA standard mounting pattern
Mini-ITXSystems that need expansionStandard mounting and expansion slots
NUCDigital signage and edge boxesSmall and serviceable compute module

02Connection layer · who builds it

The named site
behind this category.

1 supplier siteGroup EShenzhen

GEOLiNK

Industrial motherboards in six form factors, built for wide temperature and wide-voltage DC input, with OEM/ODM customisation.

28 models6 form factors−20/+60 °C9–36 V DCPer-batch reflow records
CEFCCCCC

SMT, assembly, burn-in and packaging sit under one roof in Shenzhen, so a process change shows up in the records rather than in a field failure.

Three finished fanless industrial computers in a row, closed enclosures with heatsink fins and no visible circuit boards
Fig. D Three of the finished formats this line-up ships in.
Two finished industrial computers side by side on a pale bench, both closed, with a neat row of ports along each front face
Fig. E One enclosure, one board. The format follows the cabinet, not the other way round.
Two finished industrial single-board computers in closed housings on a bench, with an e-ink shelf label standing upright beside them
Fig. F Group E again. The same two sites also carry the retail hardware line.

03Decision layer · industrial suitability

Four specifications decide
whether it survives the cabinet.

TemperaturePowerTraceabilityLifecycle
A finished fanless industrial computer enclosure in close view on a plain surface, a closed front panel with an even row of ports and no circuit board visible
Fig. G Sealed, finned and screwed down. Industrial suitability shows in the enclosure first.
01Temperature−20 °C plant floor to +60 °C cabinet air on the wide-temperature boards. Ask for the test conditions, not only the range.
02Power input9–36 V DC with protection against surges, reverse polarity and brown-outs: the line that prevents the field failure.
03TraceabilitySMT, assembly, burn-in and packaging under one roof, with per-batch reflow verification kept in the records.
04LifecycleAsk for a written end-of-life notice period and a last-time-buy commitment before design freeze.
A wide production floor seen from a raised viewpoint, three rows of identical assembly machines and painted walkways
Fig. H A second source inside the network. Four PCB partners plus our own 45,000 m² factory.
Two finished industrial computers on a bench, one fanless enclosure with heatsink fins and one rack-mount unit with a closed faceplate
Fig. I Alternates defined in advance so a substitution is not a re-qualification.

04Trust layer · compliance

Where the emissions limits
actually bite.

FCC Part 1562368-1CCC
Three finished fanless industrial computers in a row with closed enclosures

Part 15: the class is a marketing limit

Class A is equipment marketed for commercial, industrial or business use, and cannot be sold into the residential market.

Class A 79–66 dBµVClass B 66–56 dBµV10 m vs 3 m
A single technical drawing sheet seen from above with a pen, folding dividers and one teal sticky tab

§15.101 sets the route

Most unintentional radiators may take either a Supplier's Declaration of Conformity or Certification. Scanning receivers and radar detectors must be certified.

SDoCCertificationEmissions, not safety
A slim fanless industrial computer enclosure in close view with a closed front panel of ports

Safety is a separate standard

A board inside a finished appliance is assessed as part of that appliance under IEC/UL/EN 62368-1, on the 4th-edition dates.

IEC 2023-05-26EN 2024-04-19CSA/UL 2025-07-31DOW 2027-02-15
Two finished industrial single-board computers in closed protective housings on a brushed-steel bench

China entry needs CCC

Catalogue products need CCC for the China market. It is a separate approval from CE or FCC.

CCCCatalogue productsThe partner's own mark

05Execution layer · how we carry it

Four services carry
an embedded order.

6 service lines1 contract
Two technicians seen from behind at a bench, one holding a document of grey placeholder bars and the other pointing at it SVC-01

Sourcing & matching

A part that is right today and gone in three years.

We match the format to your enclosure and the BOM to parts that will still be buyable.

An engineering bench under an inspection lamp with a finished circuit board assembly, a magnifier arm and sample connectors SVC-04

Technical assessment

A thermal design that only works on a desk.

The engineers who assess our own boards review the stackup, the thermal path and the alternates with you.

Digital calipers closed around a machined aluminium housing beside a blank inspection checklist and a sealed sample bag SVC-05

Production follow-up & QC

A functional test nobody wrote down.

Pre-shipment inspection to ISO 2859-1 general level II, with functional testing to your test plan where you supply one.

An export loading bay with an open container onto a pale apron and unlabelled cartons on pallets SVC-06

Export execution

A classification that changes with the enclosure.

FOB by default, FCA for inland stuffing. The classification follows the machine the unit is built into.

06Inputs · what to send us

What to send us.

4 inputsthen a quotation
A technical drawing flat on a pale bench with digital calipers, a drafting triangle and sample parts
Fig. J The enclosure and the connector list decide the format before the price does.
01Enclosure and formatThe cabinet, mounting pattern and the format it can take.
02Temperature and powerAmbient range in service, and the rail you are feeding it from.
03InterfacesConnector list, expansion needs, and the operating system you run.
04Volume and lifecycleFirst order, annual volume, and the years you must be able to buy it.
Three finished fanless industrial computers in a row, closed enclosures with fine heatsink fins
Fig. K Ask for test conditions, not only the stated temperature range.
A blank unmarked form on a clipboard with a pen, abstract ruled lines and empty tick boxes
Fig. L One page is enough to start. The written assessment comes back first.

07Start

Send us your board specification.

Name the form factor or attach the drawing. An engineer replies with a written assessment.

Recorded. An engineer will reply.

Written technical assessment, from eric@dfshk.cn.

Book a factory visit eric@dfshk.cn · +86 152 3512 7440