That's usually known as the "vga feature connector" or "vga passthrough". You can hook other things in there like a TIGA or 8514/A high resolution card. Those were used by professionals in the olden days before VGA cards integrated graphics accelerators. I think feature connectors were sometimes used for capture cards too.

I should also mention some feature connectors are input only, others are output only. Some can be configured as either. I believe most VGA cards without acceleration are output only.

Yes, this connector is required for all kinds of early video capture cards that render directly to the main isa graphics cards RAM. Later it was implemented as Pin-connector.
On late PCI, AGP cards you will find often the VESA Advanced Feature Connector AFC, that later cards like DVD decoder cards require. This one is f.e. on the Voodoo3 cards.
Ati had it's own extension called Ati Multimedia Channel (AMC) that is used on cards from Mach64VT to Rage Pro in combination with cards like Ati-TV f.e.
http://web.archive.org/web/20050210035518/htt … faq/amcvip.html
Bandwidth for
FC is 8 bit bus, 40 MB/s
AFC 32 bit bus, 150 MB/s

I've seen a 3rd kind of feature connector that existed between VGA and AMC. It used a really proprieary long plastic connector. I think I've mostly seen these on 1994-95ish number 9 and matrox cards. I think it was functionally similar to AMC but with an expensive connector.

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

thanks for the replies.

Another example this feature connector is used for is the Creative Labs 3DO Blaster.
You connect the 3DO Blaster to the VGA card's vesa feature connector to get the 3DO video signal to show up in the Win3.1 application.

Typical use was connecting mpeg1 acceleration cards. You need cable - got one card with it too. On top is video card, bottom is vga card....

elianda wrote:

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but your site is still blocked.

In anycase, the name of the connector I am speaking of is called the VESA Advanced Feature Connector.

"A VESA standard point-to-point channel used to transfer video signals between two video controllers, typically between the display adapter and a video capture or TV board. The Advanced Feature Connector (VAFC) increases the original feature connector from 8 to 32 bits and from 40 to 150 Mbytes/sec. The cable is increased from 26 pins to 80. See VGA feature connector and VESA Media Channel."

It looks like this:

As far as I can tell this connector came out around the time of the S3 968. It may have been developed by S3 itself, but I believe it was an open standard as I have seen in on other cards as well. The card above is a #9 FX 531.

Anonymous Coward wrote:

elianda wrote:

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but your site is still blocked.

It is the same connector as on the image with the Matrox impression.

I can't think of a reason why my site is blocked from china. Maybe I should add some Loongson hardware 😉.

I noticed with my VPN turned off I can see it...very slowly.

elianda wrote:

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

http://ironalbum.pvk13.org/5012015.html

SBUS

http://ironalbum.pvk13.org/5012015063224-sold_side.jpeg

http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

Anonymous Coward wrote on 2013-02-04, 00:33:

Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but y […]
Show full quote

elianda wrote:

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but your site is still blocked.

In anycase, the name of the connector I am speaking of is called the VESA Advanced Feature Connector.

"A VESA standard point-to-point channel used to transfer video signals between two video controllers, typically between the display adapter and a video capture or TV board. The Advanced Feature Connector (VAFC) increases the original feature connector from 8 to 32 bits and from 40 to 150 Mbytes/sec. The cable is increased from 26 pins to 80. See VGA feature connector and VESA Media Channel."

It looks like this:

As far as I can tell this connector came out around the time of the S3 968. It may have been developed by S3 itself, but I believe it was an open standard as I have seen in on other cards as well. The card above is a #9 FX 531.

HI
here my Olivetti M4 454 BA2284Lev. Nasc Trigem ISA/PCI motherboard

Olivetti BA2199 M4 P90 Motherboard Socket 5

pin 1 - DATA, INPUT, 0+
pin 2 - DATA, INPUT, 0-
pin 3 - DATA, INPUT, 1+
pin 4 - DATA, INPUT, 1-
pin 5 - DATA, INPUT, 2+
pin 6 - DATA, INPUT, 2-
pin 7 - DATA, INPUT, 3+
pin 8 - DATA, INPUT, 3-
pin 9 - DATA, INPUT, 4+
pin 10 - DATA, INPUT, 4-
pin 11 - DATA, INPUT, 5+
pin 12 - DATA, INPUT, 5-
pin 13 - DATA, INPUT, 6+
pin 14 - DATA, INPUT, 6-
pin 15 - DATA, INPUT, 7+
pin 16 - DATA, INPUT, 7-
pin 17 - DATA, INPUT, 8+
pin 18 - DATA, INPUT, 8-
pin 19 - DATA, INPUT, 9+
pin 20 - DATA, INPUT, 9-
pin 21 - DATA, INPUT, 10+
pin 22 - DATA, INPUT, 10-
pin 23 - DATA, INPUT, 11+
pin 24 - DATA, INPUT, 11-
pin 25 - DATA, INPUT, 12+
pin 26 - DATA, INPUT, 12-
pin 27 - DATA, INPUT, 13+
pin 28 - DATA, INPUT, 13-
pin 29 - DATA, INPUT, 14+
pin 30 - DATA, INPUT, 14-
pin 31 - DATA, INPUT, 15+
pin 32 - DATA, INPUT, 15-
pin 33 - HSYNC, INPUT, +
pin 34 - HSYNC, INPUT, -
pin 35 - VSYNC, INPUT, +
pin 36 - VSYNC, INPUT, -
pin 37 - GROUND
pin 38 - GROUND
pin 39 - CLOCK, INPUT, +
pin 40 - CLOCK, INPUT, -
pin 41 - USER, INPUT, 0+
pin 42 - USER, INPUT, 0-
pin 43 - USER, INPUT, 1+
pin 44 - USER, INPUT, 1-
pin 45 - VALID, INPUT, +
pin 46 - VALID, INPUT, -
pin 47 - TRIGGER, INPUT, +
pin 48 - TRIGGER, INPUT, -
pin 49 - CAMERA CTRL BIT0, OUTPUT, TTL
pin 50 - GROUND
pin 51 - DATA, INPUT, 16+
pin 52 - DATA, INPUT, 16-
pin 53 - DATA, INPUT, 17+
pin 54 - DATA, INPUT, 17-
pin 55 - DATA, INPUT, 18+
pin 56 - DATA, INPUT, 18-
pin 57 - DATA, INPUT, 19+
pin 58 - DATA, INPUT, 19-
pin 59 - DATA, INPUT, 20+
pin 60 - DATA, INPUT, 20-
pin 61 - DATA, INPUT, 21+
pin 62 - DATA, INPUT, 21-
pin 63 - DATA, INPUT, 22+
pin 64 - DATA, INPUT, 22-
pin 65 - DATA, INPUT, 23+
pin 66 - DATA, INPUT, 23-
pin 67 - DATA, INPUT, 24+
pin 68 - DATA, INPUT, 24-
pin 69 - DATA, INPUT, 25+
pin 70 - DATA, INPUT, 25-
pin 71 - DATA, INPUT, 26+
pin 72 - DATA, INPUT, 26-
pin 73 - DATA, INPUT, 27+
pin 74 - DATA, INPUT, 27-
pin 75 - DATA, INPUT, 28+
pin 76 - DATA, INPUT, 28-
pin 77 - DATA, INPUT, 29+
pin 78 - DATA, INPUT, 29-
pin 79 - DATA, INPUT, 30+
pin 80 - DATA, INPUT, 30-
pin 81 - DATA, INPUT, 31+
pin 82 - DATA, INPUT, 31-
pin 83 - HSYNC, OUTPUT, +
pin 84 - HSYNC, OUTPUT, -
pin 85 - VSYNC, OUTPUT, +
pin 86 - VSYNC, OUTPUT, -
pin 87 - EXPOSURE1, OUTPUT, TTL
pin 88 - EXPOSURE2, OUTPUT, TTL
pin 89 - CLOCK, OUTPUT, +
pin 90 - CLOCK, OUTPUT, -
pin 91 - USER, OUTPUT, 0+
pin 92 - USER, OUTPUT, 0-
pin 93 - USER, OUTPUT, 1+
pin 94 - USER, OUTPUT, 1-
pin 95 - EXPOSURE1, OUTPUT, +
pin 96 - EXPOSURE1, OUTPUT, -
pin 97 - EXPOSURE2, OUTPUT, +
pin 98 - EXPOSURE2, OUTPUT, -
pin 99 - CAMERA CTRL BIT1, OUTPUT, TTL
http://www.koliber.pl/products/matrox/genesislcc3.gif
and finally find receptorhttps://www.vgamuseum.info/index.php/componen … a-1000-pci-ca-v

post_id=292758 time=1359938020 user_id=13975]
question is The Advanced Feature Connector (VAFC) on the Olivetti M4 454 is male;and it is fit to Truevision TARGA 1000 PCI CA/V
yes or no
Model : MATROX Y7239-0201 REV.A W/ Y7120_00 REV B SOL6MFCE BOARD

bymember wrote on 2021-05-20, 11:31:

Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but y […]
Show full quote

elianda wrote:

like the one on this impression? http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg

Sorry, but for whatever reason I can never see photos on your server. I am using a VPN behind the great firewall of China, but your site is still blocked.

In anycase, the name of the connector I am speaking of is called the VESA Advanced Feature Connector.

"A VESA standard point-to-point channel used to transfer video signals between two video controllers, typically between the display adapter and a video capture or TV board. The Advanced Feature Connector (VAFC) increases the original feature connector from 8 to 32 bits and from 40 to 150 Mbytes/sec. The cable is increased from 26 pins to 80. See VGA feature connector and VESA Media Channel."

It looks like this:

As far as I can tell this connector came out around the time of the S3 968. It may have been developed by S3 itself, but I believe it was an open standard as I have seen in on other cards as well. The card above is a #9 FX 531.

HI
here my Olivetti M4 454 BA2284Lev. Nasc Trigem ISA/PCI motherboard

Olivetti BA2199 M4 P90 Motherboard Socket 5

and finally find receptorhttps://www.vgamuseum.info/index.php/componen … a-1000-pci-ca-v
2021-05-20_143729.png post_id=292758 time=1359938020 user_id=13975]
question is The Advanced Feature Connector (VAFC) on the Olivetti M4 454 is male;and it is fit to Truevision TARGA 1000 PCI CA/V
yes or no

[/quote]http://retronn.de/hwpics/matrox_impression_lite.jpg
http://www.koliber.pl/products/matrox/genesislcc3.gif[/img]
AN LVDS port indeed

male mobo AVMC

THIS female backplane is like SLI in Nvidia

matrox VMCHANNEL

http://mail.lipsia.de/~enigma/neu/pics/matrox … ession_lite.jpg