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Embedded Computer Form Factors

(Embedded Computer Board graphical comparison of physical sizes)

Though not the first to enter the embedded computer market, Portwell embarked on this business with richer knowledge on market features and more accumulated experience from customer interactions. Upon Portwell Product Marketing strategy on Embedded Computer solutions, here is what we insist in:


70(W) x 70(L) mm; 2.75"(W) x 2.75" (L)

The Qseven concept is an off-the-shelf, multi vendor, Single-Board-Computer that integrates all the core components of a common PC and is mounted onto an application specific carrier board...View more Qseven

PQ7-M102XLGo Top!



114(L) x 95(W) mm; 4.5"(L) x 3.7" (W)

Embedded Technology Extended (ETX) modules are very compact highly integrated computers. All ETX modules have a standardized form factor and a standardized connector layout that carry a specified set of signals....View more ETX

PEM-E200VLAGo Top!

Embedded Technology Extended (ETX)

COM Express

125(L) x 95(W) mm; 4.9"(L) x 3.7" (W)

A Computer-On-Module, or COM, is a module with all components necessary for a bootable host computer, packaged as a super component. A COM requires a Carrier Board to bring out I/O and to power up....View more COM Express

PEM-E200VLAGo Top!

COM Express


120(W) x 120(L) mm; 4.72"(W) x 4.72"(L)

The NANO-ITX form factor, was defined by the chipset manufacturers in Taiwan. It measures 120 x 120mm, and is fully integrated, very low power consumption main boards...View more NANO-ITX

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170(W) x 170(L) mm; 6.69"(W) x 6.69"(L)

The Mini-ITX form factor, was defined by the chipset manufacturers in Taiwan, is a highly integrated, all-in-one x86-based embedded computer board that measures a mere 170 x 170mm...View more MINI-ITX

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3.5" ESB (Embedded System Board)

146(W) x102(L) mm; 5.75"(W) x 4.0"(L)

3.5" ESB is a de-facto standard for Taiwanese Industrial PC makers and is broadly adopted by customers. It is characterized by its 3.5" device size...View more 3.5" ESB

PEB-2731VLAGo Top!

3.5" Embedded System Board

Half-sized PCI SBC(Single Board Computer)

185(L) x 122(W) mm; 7.3"(L) x 4.8" (W)

This is a non-standard form factor that adopts PICMG 1.0 signaling with PCI connection. It helps save the space, when the systems ae deployed in a space limited environmet...View more Half-sized PCI SBC

Half-sized PCI SBCGo Top!

5.25" ESB and EBX

203(W) x146(L) mm; 8"(W) x 5.7"(L)

EBX is a de-facto standard of industry set by Motorola/Ampro and some other industrial PC makers. Lots of IPC makers follow this standard to design their proprietary layout as a 5.25" embedded system board.

PEB-3732VLAGo Top!

microATX motherboards

243(W) x 243(L) mm; 9.6"(W) x 9.6"(L)

ATX is a well-known form factor for consumer motherboards. It has various versions like microATX, FlexATX and EmbATX for different market segments and vertical applications...View more microATX

PEB-7710VLAGo Top!

Half-sized ISA SBC(Single Board Computer)

185(L) x 121.5(W) mm; 7.3"(L) x 4.8"(W)

This is a standard form factor, featuring ISA add-on cards, that is widely adopted in industrial applications during the last decade.

Half-sized ISA SBCGo Top!

PC/104 & PC/104-plus

Following the industrial standard set by PC/104 consortium, PC/104 and PC/104-plus are defined as a mini PC module with ISA extension (PC/104) and with PCI extension (PC/104-plus) functionality individually.

Click for detailed spec!Go Top!