- 第一
- 我无法识别左侧的连接器。中间是USB mini B，右边是USB micro B
- 我不认为它是任何 USB 或 HDMI 连接器
- 另一端是普通的 USB Type A
- 第二个
- 一端为母并口，另一端分为母 VGA 和公 RJ11 连接器
- 第三名
- 只是一个普通的 25 针并行端口扩展？
- 它是用来做什么的？
- 第四上
- 我认为这是一个 36 针到 25 针并口适配器？
- 它如何添加引脚？
- 它是用来做什么的？
- 第五名
- 这绝对的怪物
- 似乎是一个公 25 针并行端口，拆分为 2 个母 25 针并行端口，然后每个都有一个 VGA 适配器
- 这是用于双屏的吗？
- 第六名
- 一个公 Molex(?) 连接器到两个母 VGA 连接器
- 用于双屏？
1 is micro usb b, or mini usb b. https://www.cablestogo.com/learning/connector-guides/usb
2 I have a feeling it might of been for a 'fax printer' combined type unit. So the RJ-11 would go to a phone line, giving a printer (with serial connectivity if it needed a modem) phone capability.
3 - yes, extension cord, for things that are far away ;)
4 - the added pins are likely ground pins - so they can all terminate to the same point.
5 - That's not VGA, it's 9 Pin DSUB. It looks like it may of been for connecting to a printer, or some other kind of embedded device, but this is always going to be guess work.
6 - As answered in chat by Journey Man Geek, that is https://en.wikipedia.org/wiki/DMS-59. So yes, 2 monitors to a single port on a graphics card.
This is also a great resource for identifying ports: https://removeandreplace.com/2013/04/13/computer-ports-learn-the-name-and-location-of-the-connections-on-your-desktop-computer-or-laptop/
Is probably a proprietary USB connection, most likely for some early mobile phone or a digital camera. Before micro USB became commonplace, a lot of companies that made USB-connected peripherals used custom connectors on the device side, either so they could reuse the same connector for multiple purposes, or just to force users to buy cables through them. I think I've seen that shape and size before, but I don't remember where.
Not sure, I'd have to see how exactly it's wired. It might be a combined fax/printer unit as mentioned in another answer, it might be some kind of RS-232 splitter cable (that's a DE-9 connector, not a VGA connector BTW), or it may be some completely custom cable.
Is probably a straight-through extender cable. In theory, usable for any application requiring a longer cable with DB-25 connectors (not nessecarilly parallel, old RS-232 serial links, especially for terminal servers, would also use DB-25, albeit with reverse gender on the connectors relative to parallel connectors). However, there's no way to be certain without checking the wiring (if it's short, it might be a special adapter cable, like a null modem cable).
Is an IEEE 1284 parallel cable, with a DB-25 connector at one end, and a 36-pin micro ribbon connector (sometimes called a 'Centronics' connector after the company that developed the original version of the IEEE standard) on the other end. The different connectors were used for the same reason that USB conventionally used separate connectors for the host and the device. These were the norm for parallel printers for many years. I don't recall how the extra pins were connected (probably either grounded or left floating). A 50-pin version of the same micro-ribbon connector was used for both the original SCSI-1 standard, as well as for RJ21 connections in analog telephone systems (carrying 25 phone lines in one cable, mostly used at branch exchanges).
可能是 RS-232 分配器。上面提到的旧 DB-25 RS-232 连接器可以连接成在同一个连接器上具有两个串行链路，并且需要使用这种电缆将两个具有 DE-9 连接器的设备连接到这样的端口。
是专有的视频卡适配器电缆。一些较旧的小型视频卡使用看起来很疯狂的连接器（它不是 Molex，但我不确定品牌是什么），所有引脚都作为它们唯一的外部连接器，然后需要这样的适配器才能分开到各个视频连接。我自己从未见过一个拆分为两个 VGA 连接的设备，但我之前见过一个拆分为两个 DVI-I 或一个 DVI-I 和一个 VGA 的连接。