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                                 Compliments of

                 The  P e r S t o r   S u p p o r t    B o a r d

                               FidoNet  1:102/523
                               AlterNet 7:401/523



              PS180-8XT/-AT COMPATIBLE DRIVES LIST


MANUFACTURER      MODEL     CYLS    HEADS   ORIGINAL    CAPACITY    
                                            CAPACITY     W/PS180
________________________________________________________________

MINISCRIBE        3425      615       4       21.4        39.0
                  8425      615       4       21.4        39.0   
                  8438      615       4       21.4        39.0
                  8425F     615       4       21.4        39.0
                  8438F     615       4       21.4        39.0
                  3650      809       6       42.2        77.0 
                  6032     1024       3       26.7        48.7
                  6053     1024       5       44.6        81.0 
                  6079     1024       5       44.6        81.0
                  6085     1024       8       71.3       130.0
                  6128     1024       8       71.3       130.0
                  
SEAGATE          *ST225     615       4       21.4        39.0
                  ST238     615       4       21.4        39.0
                  ST125     615       4       21.4        39.0
                **ST251     820       6       42.8        78.0
                  ST277     820       6       42.8        78.0
                  ST4051    977       5       42.5        77.0
                  ST4096   1024       9       80.2       146.0 
                  
NEWBURY DATA      NDR1065   918       7       55.9       101.0 
                  NDR1085  1024       8       71.3       130.0 
                  1140     1024      15      133.6       243.7  
                  2190     1224      15      159.8       243.7  

MAXTOR            1065      918       7       55.9       101.0
                  1085     1024       8       71.3       130.0
                  1140     1024      15      133.6       243.7
                  2190     1224      15      159.8       243.7

CDC WREN 2        94155-19  697       3       18.2        33.1
                  36        697       5       30.3        55.3
                  38        733       5       31.9        58.1
                  48        925       5       40.2        73.4
                  51        989       5       43.0        78.4
                  57        925       6       48.3        88.1
                  67        925       7       56.3       102.7
                  77        925       8       64.4       117.4
                  86        925       9       72.5       132.1

NEC               D5126     615       4       21.4        39.0
                  D5127     615       4       21.4        39.0
                  D5146H    615       8       42.8        78.1
                  D5147H    615       8       42.8        78.1

MICROSCIENCE      HH-1025   615       4       21.4        39.0
                  HH-1050  1024       5       44.6        81.0
                  HH-1120  1314       7       80.0       113.7

RODIME            3055      872       6       45.0        83.0
                  352       306       4       10.0        19.4

LAPINE            TITAN 20  615       4       21.4        39.0
 
MICROPOLIS        1335     1024       8       71.3       130.0

PTI               PT225     615       4       21.4        39.0
                  PT338     615       6       32.1        58.6
                  PT238R    615       4       21.4        39.0
                  PT357R    615       6       32.1        58.6

PRIAM             ID45H    1024       5       44.6        81.0
                  ID130    1224      15      159.8       243.7

ATASI drives have been added.

OPTIMA drives have been added.
_________________________________________________________________

* Only Seagate ST225 drives with revision #003 and S/N 1,000,000+ 
or revision #003B+ work with the PS180 controllers.

**Only  Seagate  ST251  drives with MLC-0 or MLC-1  on  bar  code 
sticker work with the PS180 controllers.

Perstor Systems,  Inc. has tested the drives listed above and has 
found them to be compatible.   However, due to changes in product 
introduced   by  drive  manufacturers,   Perstor  cannot  warrant 
compatibility in all cases.  

When using an 8 bit controller, you cannot achieve a 90% capacity 
increase  on  drives having more than 1024 cylinders  because  it 
will  only support 1024 cylinders.   The 16 bit  board,  however, 
will  support  up  to 2048 cylinders and provide a  90%  capacity 
increase on these drives.