"SDK0.920 is provided under the premise of being used in combination with the SGX541MP(ES1)-embedded CEM-3000E3 DevKit.
In addition, the SDK 0.925 to be released in the future will support both CEM-3000E3 and SGX543MP4+(ES2)-embedded new DevKit DEM-300xG, which is planned to be shipped in September."
"  The support regarding SGX541MP(ES1)/SGX543MP4+(ES2) in sample programs
  of SDK 0.92, and the points to note regarding the creation of project files for applications
  are explained below.

  Note that SGX541MP(ES1) is embedded on the current CEM-3000E3 development machine
  while SGX543MP4+(ES2) will be embedded on the DEM-300xG development machine to be
  shipped in September.

  *** SGX541MP(ES1) Support ***

  In each sample directory, a solution file and a project file for SGX541MP(ES1)
  - each including "-es1" in the filename as in, XXX-es1.vcproj and XXX-es1.sln - exist.
  When using the SGX541MP(ES1)-embedded CEM-3000E3 development machine
  (which constitutes as the "first-generation" SGX541MP(ES1)-embedded
  development machine), please use these solution and project files.

  The above files differ from the project files of sample programs of SDK0.910 and earlier
  in the following manner.

  - SCE_PSP2_TARGET_ES1 has been newly-added to "Preprocessor Definitions".

  *** SGX543MP4+(ES2) Support ***

  In each sample directory, a solution file and a project file for SGX543MP4+(ES2)
  - each without "-es1" in their filenames as in, XXX.vcproj and XXX.sln - exist.
  When using the SGX543MP4+(ES2)-embedded DEM-300xG development machine
  to be released, please use these solution and project files.

  The above files differ with the project files of sample programs for SDK0.910 and earlier
  in the following ways.

  - SCE_PSP2_TARGET_ES2 has been newly added to "Preprocessor Definitions".

  - The following changes have been made to "Additional Dependencies".
    - -lSceRazorCaptureEs1_stub_weak/-lSceRazorCaptureEs1_stub has been changed to
       -lSceRazorCapture_stub_weak/-lSceRazorCapture_stub
    - -lSceGxtEs1_stub_weak/-lSceGxtEs1_stub has been changed to
       -lSceGxt_stub_weak/-lSceGxt_stub
    - -lSceGxmEs1_stub_weak/-lSceGxmEs1_stub has been changed to
       -lSceGxm_stub_weak/-lSceGxm_stub

  -The following changes have been made to "Command Line" of the "Custom Build Step".
    - psp2cgc-es1.exe has been changed to psp2cgc.exe
    - --profile sce_vp_psp2_es1 has been changed to --profile sce_vp_psp2
    - --profile sce_fp_psp2_es1 has been changed to --profile sce_fp_psp2

  Moreover, restrictions exist by which a GPU core dump is generated when the
  solution and project files for SGX543MP4+(ES2) are built for the following
  sample programs.

  - %SCE_PSP2_SDK_DIR%\target\samples\sample_code\graphics\tutorial_frustum_culling
  - %SCE_PSP2_SDK_DIR%\target\samples\sample_code\graphics\tutorial_water_simulation

  *** Points to Note for Builds ***

  Because the same output directory is set for project files for SGX541MP(ES1)
  and for SGX543MP4+(ES2), when one project is built, all of the files created for this
  build must be deleted before the other project can be built. In this case, please be
  careful as not all the files may be completely deleted even when the project is "cleaned".
  To avoid this problem, copy the sample directory to a completely different location and
  clearly separate the samples directory in which to perform builds for SGX541MP(ES1)
  and SGX543MP4+(ES2).

  *** Points to Note for Creating Project Files for Game Applications ***

  For SDK0.920, it is assumed that most application developers will be creating project
  files for SGX541MP(ES1). To create project files for SGX541MP(ES1), please note the
  following.

  - The host tools and host library for SGX541MP(ES1) have "-es1" added to their filenames.
     Example: psp2gxt-es1.exe, psp2cgc-es1.exe, psp2cgc-es1.dll, etc.

  - The libgxm header is common to SGX541MP(ES1) and SGX543MP4+(ES2); however,
     support will change according to the definitions of SCE_PSP2_TARGET_ES1 and
     SCE_PSP2_TARGET_ES2.

  - The shader profile is "--profile sce_vp_psp2_es1" and "--profile sce_fp_psp2_es1" for
     SGX541MP(ES1).

  - Libraries for SGX541MP(ES1) include "Es1" in their filenames.
     Example: libSceGxtEs1_stub.a, libSceGxmEs1_stub.a, etc." -- source -- Technote ID : 201007-01 https://ngp.scedev.net/technotes/view/14
"On CEM-3000E3 the user can access * "host0:" = File server of the remote host
* "sd0:" = External SD card"