CFT 8 Slot Backplane
alexiosc·cft·kicad/cft/cft-backplane-pci-express/cft-backplane.kicad_pcb
About the CFT 8 Slot Backplane PCB
CFT 8 Slot Backplane is an open source PCB design by alexiosc, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 131.9 × 165.1 mm, with 47 components from 11 distinct parts.
By type, the board carries 15 connectors, 12 capacitors, 6 diodes and 6 resistors.
It belongs with the usb & debug tools designs in this gallery.
From the project
The CFT homebrew minicomputer
The CFT is a home-designed, home-built mini-computer made from scratch.
I've designed and built the instruction set, data path, processor, computer, software stack, cross-assembler, emulator, software toolchain and even some of the tools needed to do all this. You can call this a ‘fantasy mini’.
This project has been going since approximately 2001, in my Copious Free Time.

CFT 8 Slot Backplane bill of materials (BOM)
47 components, 11 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 8 | Conn_02x20_Top_Bottom | IDC-Header_2x20_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6, J7, J8 |
| 1 | Conn_02x02_Top_Bottom | Molex_Mini-Fit_Jr_5566-04A2_2x02_P4.20mm_Vertical | J9 |
| 1 | Conn_02x04_Top_Bottom | Molex_Mini-Fit_Jr_5566-08A2_2x04_P4.20mm_Vertical | J10 |
| 4 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J11, J12, J13, J14 |
| 1 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J15 |
| 8 | conn_2x82_ab | Amphenol_10018783-x0x03_2x82_P1.00mm_Socket_Vertical | SLOT1, SLOT2, SLOT3, SLOT4, SLOT5, SLOT6, SLOT7, SLOT8 |
| 6 | LED_ALT | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3, D4, D5, D6 |
| 12 | 1µF | CP_Radial_D6.3mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7, C8 +4 |
| 3 | 330Ω | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R2, R4 |
| 1 | 120Ω | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 2 | 1kΩ | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R6 |
CFT 8 Slot Backplane design files
The KiCad project lives in the alexiosc/cft repository on GitHub; these links point at the commit this page was built from.
CFT 8 Slot Backplane: common questions
How big is the CFT 8 Slot Backplane PCB?
The CFT 8 Slot Backplane measures 131.9 × 165.1 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the CFT 8 Slot Backplane?
47 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the CFT 8 Slot Backplane design files?
From the alexiosc/cft repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the CFT 8 Slot Backplane design in my own project?
Yes, under the terms of its GPL-3.0 license, which alexiosc chose for the repository.
More boards in cft
CFT Processor Board 0
alexiosc
233.4 × 280 mm274 parts2LGPL-3.06CFT Board 1
alexiosc
233.4 × 280 mm222 parts2LGPL-3.06Cft ctl
alexiosc
131.9 × 164.6 mm195 parts4LGPL-3.06Cft ctl dip
alexiosc
131.9 × 164.6 mm195 parts4LGPL-3.06AVR/Arduino
CFT DFP Board
alexiosc
233.4 × 280 mm186 parts2LGPL-3.06AVR/Arduino
Debugging Front Panel
alexiosc
280 × 164.6 mm165 parts2LGPL-3.06Cft front panel-20190912-all modules
alexiosc
99.7 × 143.4 mm122 parts2LGPL-3.06CFT MEM Board
alexiosc
233.4 × 280 mm96 parts2LGPL-3.06Cft backplane-20191114-r1922
alexiosc
131.9 × 165.1 mm47 parts4LGPL-3.06
Similar boards
XG Station Power
osy
54.3 × 91 mm9 parts2LCC-BY-4.0703USB Hub Test
osy
50 × 50 mm85 parts4LCC-BY-4.0703FW-EC-DongleHiderPlus
LeoDJ
28.2 × 26.1 mm14 parts4LCERN-OHL-W-2.0490Adapter tsop48
bbogush
48 × 33 mm3 parts2LGPL-3.0389Adapter tsop48 solder
bbogush
48 × 33 mm3 parts2LGPL-3.0389Adapter soic8 solder
bbogush
48 × 20 mm3 parts2LGPL-3.0389