Floppy Connector

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17 mm

Floppy cable connector — ThinkPad side (770) — width: 17mm

By year 2000, IBM made this their standard exteral floppy connector. This D-shell connector has 26 pins. It is found in ThinkPad and Dock line, and SurePOS.

Models featuring this Technology

beware identical Toshiba

Toshiba used a same connector as IBM (17 mm 26 pin). Like ThinkPad parts, they are abundant in secondhand market. I wonder if they are compatible; I did not test, myself. I found only one user report (IBM floppy with Toshiba PC), and that user reports failure, not compatible. How unfortunate, IBM and Toshiba did not choose identical wiring plan.--Numeric (talk))

drive Options

ThinkPad T Series FDD External Cable Kit

This cable connects Ultrabay 2000 Floppy Drive to host with 17 mm D connector. End of cable with Ultrabay 2000 connector has thumbscrews, for a rigid connection, semi-permanent attachment. IBM Option P/N 27L0524; FRU P/N 27L0525; other P/N (ASM?) 27L0526. Support Document MIGR-4JTSXJ Support Document MIGR-40010

UltraslimBay Floppy enclosure

This enclosure houses UltraslimBay Floppy Drive, connects to host with 17 mm D connector.

  • Black IBM logo: FRU P/N 05K6187; ASM P/N 05K5907.
  • Blue IBM logo: FRU P/N 05K2643; ASM P/N 05K8805.

cable to 21 mm connector

  • FRU 12J1711
  • FRU 12J0432
  • FRU 05K2844 (other P/N 05K2843)
  • FRU 39F2077 (other P/N 85G9169)

20 mm

Floppy cable connector — ThinkPad side (365XD) — width: 20mm

This D shell connector has 26 pins (seems to be the same like 17 mm, but a little bigger).

  • ThinkPad 365X, 365XD
  • cable to 21 mm connector: P/N 46H8096, FRU P/N 74H0219


Bob Collins wrote on forum.thinkpads.com:
The cable for the flop looks like a mini SCSI (external) connector with 36 gold contacts. The width of the connector is approx 1".

Tip by Bob Collins on forum.thinkpads.com.

NDCaesar wrote on forum.thinkpads.com:
The 701 uses an unusual connector for the external floppy drive. It looks like a wider version of the connector on the 10H4056 floppy drive itself. The trapezoidal part is ~26mm wide and the same height as the one on the drive, with identical clips on either side.

Tip by NDCaesar on forum.thinkpads.com.

  • ThinkPad 701C, 701CS
  • cable to 21 mm connector: FRU 04H6916

21 mm

Floppy cable connector — drive side — width: 21mm

This D-shaped trapezoidal connector is used in several external diskette drives, by both IBM and Dell. It has 26 pins. It is a little bit wider than 20 mm D, and about twice as thick.

  • MPF72E-1 : ASM P/N 05K8973; FRU P/N 05K8990;
  • FD-05P2 : ASM P/N 05K8958; FRU P/N 05K8989;
  • IBM FRU NUMBER : 10H4056 ; PART NUMBER 10H3980 ;
  • IBM FRU # 59G7918
  • FRU # 48G9896
  • Dell part number 25749; FCC ID NO.: DX9-DELL-EXFDD;

parallel port

ThinkPad T20 line supports a floppy drive connected to Parallel Port. Other portable PCs featured this functionality (notably Compaq Armada M700, Dell Latitude LS, and Toshiba), but each company chose different wiring, so a non-IBM parallel floppy drive is NOT substitutable. The adapter (FRU P/N: 08K6360; other number (ASM?) 08K6359) provides a 17 mm D receptacle.



Part numbers

  • P/N: 83H6276
  • FRU 73G3422 for 510CS, ref findeis
  • FRU 59G7925 for 500, ref findeis

Models featuring this Technology

"365CD, 365ED systems ship with an external Floppy Disk Drive that has a non-detachable cable. FDD/Cable assembly FRU 75H7572", Document ID: YAST-3FGSHU, kev009.com
  • Ext.-Diskette Drive (Opt. TOGP14M) 48G8263
ThinkPad 730TE 730T 730TE Parts Listing (2524), kev009.com
"Just wanted to advise that some of the newer Thinkpad's External Floppy Drives will function with the 730T. I was using the External floppy from my 765D system, FRU# 66G5069 P/N 66G3696. The floppy drive is also used in the following Thinkpad units, the 360, 355, 370, 701, 755, & 760. This drive unit should be easier and less expensive to obtain than the original unit" 730T/TE Tablet, kev009.com

ThinkPad 310

"The FRU is 05K8827. The cable for the 310ED uses the same size connector on both ends of the cable.", Davemci, forum.thinkpads.com
05K9040, rkawakami same topic as last
"External FDD cable FRU P/N 11J8629" "External FDD Module (with information label) FRU P/N 11J8628", Parts Listing (310, 310D - 2600), kev009.com
  • "FRU P/N 05K8827 - fdd; FRU P/N 11J8629 - cable; For TP 310E/ED,315E/ED only. This floppy drive shipped with the computer and is not available seperately."
  • "FRU P/N 11J8628 - fdd; FRU P/N 11J8629 - cable; For TP 310,315 only. This floppy drive shipped with the computer and is not available seperately."
[http://ps-2.kev009.com/pcpartnerinfo/ctstips/f6fe.htm TP 310E/ED,315E/ED - HDD/CD-Rom/FDD Options, Parts Information Document ID: LWIK-3QAKDA, kev009.com

ThinkPad 760 765

Docks and Port Replicators featuring this Technology

These devices only feature pass-through functionality, the actual Floppy Controller logic needs to reside in the ThinkPad for the port to work