# MECB or ECB Expansion - Grid 160mm Card Plain Grid Prototype Card for the ECB bus, or Expanded ECB bus, or Minimalist Europe Card Bus (MECB). - **Seller:** [Digicool Things](https://lectronz.com/stores/digicoolthings), Auckland, New Zealand - **Price:** $9.90 (USD, before shipping and taxes) - **Availability:** In stock - **Categories:** Retrocomputing, Kits, Platform - **Product page:** https://lectronz.com/products/mecb-or-ecb-expansion-grid-160mm-card ## Options **Hardware Pack** - No thanks - Hardware 64-pin Pack [Add $6.00] (5 left) - Hardware 96-pin Pack [Add $8.00] (5 left) ## Links - [Documentation](https://digicoolthings.com/mecb-or-ecb-expansion-prototype-160mm-card/) ## Images ![MECB or ECB Expansion - Grid 160mm Card](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzA0NzUsInB1ciI6ImJsb2JfaWQifX0=--a08c7be53b1d2865845ad76277324e5adc0a4d04/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/2026-08-16T04-13-39.297Z-MECB_Grid_160mm_PCB_v1.0..jpeg) ![MECB or ECB Expansion - Grid 160mm Card](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzA0NzYsInB1ciI6ImJsb2JfaWQifX0=--ed6dcd2d20ea110d0f0120bfbd4e015fcb18b4e6/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/2026-08-16T04-13-39.297Z-MECB_Grid_160mm_Kitset..jpeg) ![MECB or ECB Expansion - Grid 160mm Card](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzA0NzcsInB1ciI6ImJsb2JfaWQifX0=--677b2d225ff6edbe0ab98948400dd47615e6b5c4/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/2026-08-16T04-13-39.297Z-MECB_Grid_160mm_PCB_3D_v1.0.png) ![MECB or ECB Expansion - Grid 160mm Card](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzA0NzgsInB1ciI6ImJsb2JfaWQifX0=--5a8e90b8d2b9b30530714ce8b6de3e05e786579a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJwbmciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--605f1da017bcbb03ce31845cd0e81d97e3b3c574/2026-08-16T04-13-39.297Z-MECB_Grid_160mm_BOM.png) ![MECB or ECB Expansion - Grid 160mm Card](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NzA0NzksInB1ciI6ImJsb2JfaWQifX0=--c58db96f296f635c8fc1c1b3546d3c220fdeed6e/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGVnIiwicmVzaXplX3RvX2xpbWl0IjpbOTYwLDY0MF0sInNhdmVyIjp7InN0cmlwIjp0cnVlfX0sInB1ciI6InZhcmlhdGlvbiJ9fQ==--4e27bac8cdfb621fb828f6a3a5982fe1a423b516/2026-08-16T04-23-58.039Z-ShippedRobustly..jpeg) ## Description **Note:** The Grid 160mm Card is supplied in Kitset form only (assembly required). The base price is for the double-sided silkscreened Grid 160mm Card PCB ONLY. The optional Hardware pack (64 pin or 96 pin), is required to make a complete Grid Card Kitset. So, if you already have the required parts, then you can just order the PCB only. ## What is Europe Card Bus (ECB) The original ECB implementation, was specified by Kontron in the late 70’s. It used only rows A & C (64 pins), of the standard DIN 41612 3 rows of 32 pins connector (for its bus signals). Over time, hobbyists have since evolved the original Kontron ECB specification to now utilise all 3 rows (A, B & C) on the 96-pin DIN 41612 (3 row connector). ## What is Minimalist Europe Card Bus (MECB) As noted above, Europe Card Bus (ECB) is a Retro CPU Bus standard from the late 1970’s / early 1980’s. The “Minimalist Europe Card Bus” (as I’ve called it), is a Retro 8-bit CPU Bus and PCB design standard that I decided to define & document. The purpose of which is to provide a modular platform for me to re-experience the fun of experimenting with the different 8-bit CPU’s, and the various video and peripheral devices, that I grew up with in the late 1970’s and early 1980’s. My goal was that of a robust and modular design platform which allows me to create interchangeable PCB cards, based on time proven reliable bus connectors and modern low-cost prototype PCB manufacturing. i.e. A robust, flexible, and low cost way for me to re-create some of the early microprocessor circuits, that I’d originally built using Wire-Wrap methods back in the day. As evident from the name, the Bus itself is based on a Minimalist implementation of the original Europe Card Bus (ECB) standard. ## Grid 160mm Card Design ### Grid 160mm Card Design Parameters: - Implement the original Eurocard standard card size of 100mm x 160mm - Corner mounting holes, as per the MECB Standardised Board Mechanical Specification. - A 64-pin or 96-pin header, clearly labelled with the A, B & C rows and pins 1 – 32, for ease of access to all bus signals including MECB through to Expanded ECB. - Power bus bars along the two sides of the card, to distribute the +5V and Ground power connections. - All remaining board space (with exception of mounting hole clearance), to be utilised for free use through-hole pads, in a 0.1″ perf-board style grid. **Note:** There are also Grid Cards available in the standardised MECB 100mm x 100mm card size, including with an on-board glue-logic PLD (either 16V8 or 22V10). There is also Prototype Card equivalents available (with 3x1 connected pads, instead of plain Grid). Please see the seperate Lectronz product listings. ## What You Get To satisfy everyone's differing needs, I've split the Grid 160mm Card Kitset into an optional add-on pack selection. Firstly, note that the base price is for the double-sided silkscreened Grid Card **PCB Only**. Then you add an *optional* Hardware Pack (either 64-pin or 96-pin), to complete the Kitset, depending on your Bus and parts requirements. *Optional* **Hardware Pack** includes: - 4x M3 Nylon PCB Spacer 12mm - 8x M3 Nylon Bolt 6mm (for Spacer mounting) - 2x M2.5 Stainless Steel Bolt 10mm (2 required for Right Angle Connector) - 2x M2.5 Stainless Steel Hexagonal Nut (for above Bolts) *and* **64-pin Pack** - 1x Right Angle Male DIN41612 364 Keyed Bus Connector (3 row 64 pins) - 2x 40 pin PCB Headers (to be cut into 2x 32 pin headers) *Or* **96-pin Pack** - 1x Right Angle Male DIN41612 396 Keyed Bus Connector (3 row 96 pins) - 3x 40 pin PCB Headers (to be cut into 3x 32 pin headers) ## Grid 160mm Card BOM The following is a full Bill Of Materials (BOM) to allow fully assembling your Grid 160mm Card, ready for adding your own project designs. Note that the PCB is supplied, and **all components are available via the optional Hardware Packs**. ### Default (PCB Only) | Item | Qty | | -------- |:--------:| | MECB Grid 160mm Card PCB | 1 | ### Optional Pack | Item | Qty | Source | | -------- |:--------:| -------- | | M3 Nylon PCB Spacer 12mm | 4 | Hardware Pack (64-pin or 96-pin) | | M3 Nylon Bolt 6mm | 8 | Hardware Pack (64-pin or 96-pin) | | M2.5 Bolt 10mm Thread Length | 2 | Hardware Pack (64-pin or 96-pin) | | M2.5 Nut | 2 | Hardware Pack (64-pin or 96-pin) | | DIN41612 Male R/A 364 Connector | 1 | Hardware Pack (64-pin) | | 40 pin PCB Header Strip | 2 | Hardware Pack (64-pin) | | DIN41612 Male R/A 396 Connector | 1 | Hardware Pack (96-pin) | | 40 pin PCB Header Strip | 3 | Hardware Pack (96-pin) | Via the *Documentation* link (below) you'll also find related videos, and other videos presenting different components of the my retro 8-bit computing projects. Your Grid 160mm Card Kitset order is shipped in a robust cardboard carton with packing, for safe delivery via New Zealand International Air Parcel (see example shipping photo). **Note:** The linked video (below) introduces the similar ***Prototype 160mm Card***. The only difference is that this ***Grid 160mm Card*** provides a plain Grid of 0.1" spaced pads (2.54mm) for your point-to-point or wire-wrap project. The ***Prototype 160mm Card*** instead provides *1x3 connected pads* to facilitate easier 0.3" or 0.6" DIP IC point-to-point wiring. Just select the card that works best for you (the ***Prototype 160mm Card*** is listed seperately).
## Shipping policy We pride ourselves with our "Next Business Day" Shipping Policy, and robust carton packaging. We also build to order, so if you order items with an "Assemble it for me" option selected, it may slightly delay shipping (while we build it for you).