Hard disk drives

IBM sold its HDD manufacturing to Hitachi, who continued to use the Travelstar name for notebook drives.

IBM/Hitachi harddisk naming scheme

Hitachi harddisk names (on modern drives) are a set of letters and numbers that in fact tell a lot about the specifications of the drive. The designation follows the pattern:

H	T	S	72	60	60	M	9	AT	00
H	[t]	[?]	[rr]	[??]	[ss]	[?]	[h]	[ii]	[??]

• the H is for Hitachi
• [t] is a single letter designating the drive type, like
  • T = Travelstar
  • D = Deskstar
  • E = Endurastar
• following is a mystical single letter.
• [rr] is the first two digits of speed in RPM, i.e. 54 for 5400 RPM.
• next two are strange, they match the marketing/branding name for the drives, like 7K60 would be HTS7260... . So they might just separate drive generations or something like that. But they also match the size of the biggest available drive in that series.
• [ss] is two digits giving the size in GB. 100gig drives have a 10 here.
• following is a letter that is probably placed as a riddle for anyone who wants to interpret the naming scheme.
• [h] is the drives height in full millimeters, first digit, i.e. 9 for 9.5mm .
• [ii] is a two digit code for the drives interface, like this:
  • AT = IDE/ATA
  • SA = IDE/SATA
  • CE = IDE/ZIF
  • CF = Compact Flash
  • L3 = SCSI/Ultra320
  • LF = FC-AL
• two numerical digits are following, might be some kind of revision, might be something else.

Available drives from IBM or Lenovo

2.5" 9.5mm SATA
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
60GB	5400	40Y8723
100GB	5400	40Y8721
60GB	7200	41N3012
100GB	7200	41N3013
2.5" 9.5mm PATA
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
6GB	4200	05K9237
10GB	4200	08K9510
12GB	4200	05K9238
15GB	4200	08K9588
20GB	4200	27L3439
20GB	4200	08K9686
30GB	4200	08K9593
40GB	5400	08K9687
40GB	5400	08K9816
60GB	5400	08K9688
60GB	5400	73P3357
60GB	7200	13N6807		Hitachi	HTS726060M9AT00	T41p, T42p, T43, T43p
80GB	4200	08K9869
80GB	5400	13N6798	13N6805	Hitachi	HTS548080M9AT00	T41p, T42p, T43p
80GB	5400	09N4273
100GB	5400	40Y8716
2.5" 12.5mm PATA
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
18GB	4200	05K9239
32GB	5400	08K9511
48GB	5400	08K9600
1.8" 9.5mm PATA
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
20GB	4200			Hitachi	HTC426020G7AT00	X40
60GB	4200	73P3358
2.5" PATA (770 series)
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
5.1GB		11J8947
8.1GB		02K0517
14.1GB		02K0526
2.5" PATA (380,385,560,570,600 series)
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
1.08GB		46H4208
2.1GB		73H9797
2.1GB		45H8783
3.2GB		02K0487
4.0GB		02K0501
4.0GB		05K8871
5.1GB		02K0506
6.0GB		05K9199
6.4GB		02K0518
10GB		36L9293
12GB		05K9200
18GB		37L2993
2.5" SCSI-2 (PowerPC ThinkPads)
Capacity	RPM	PartNr.	FRU	Manufacturer	Model	ThinkPad Models
540MB		30H1388				820, 850, 860
810MB		30H1392				820, 850, 860
1.2GB		30H1467				820, 850, 860