Boot ROM firmware for the Apple MacBook Pro A1398 Retina on logic board 820-3332-A, archived in RAR format at about 4.6 MB.

Working BIOS dump for the Lenovo ThinkPad T440p, project VILT2, board NM-A131 revision 1.0 dated 2013-08-07, in a 7.76 MB RAR archive.

Apple firmware archive for a MacBook A1398 from 2015, logic board 820-00426, revision A, sized for an 8MB flash chip and marked as tested working.

Schematic for the Apple Mac mini A1347 logic board 820-5509, revision A, with J64 as the board code and MLB marking the main logic board.

EFI firmware dump for the MacBook Air A1369, EMC 2392, on logic board 820-2838-A, stored in a 2.07 MB RAR.

Firmware dump for the Apple Mac mini A1347 on logic board 820-3017-A, described as a working, fully tested BIOS, with a TB tag in the name that is not further explained.

BIOS for the Fujitsu ESPRIMO Q556 mini desktop, motherboard D3403-A13, GS 1, for an 8 MB flash chip, compressed into a 12.2 MB RAR.

Firmware dump for the Apple iMac 21.5-inch Mid 2011, model A1311 with board code K60 and logic board 820-3126-A, marked as working.

178 KB PDF covering the 2SA1358, a PNP transistor numbered under the Japanese JIS standard, where 2SA means a high-frequency PNP type.

PDF of 87.3 KB named after the 2SA1347 transistor and nothing else, so it is best regarded as a datasheet despite the schematic label.

The 2SA1370 is a PNP transistor in the Japanese JIS numbering system, and this 138 KB PDF is named after it alone.

Named solely after the 2SA1359 part number, this 179 KB PDF is best treated as a component datasheet even though it is indexed under schematics.

PDF reference for the 2SA1360 transistor, roughly 176 KB. The file is labelled a schematic, but naming it after one part points strongly to a datasheet.

Datasheet-type PDF for the 2SA1357, sized at 177 KB and catalogued as a schematic. The file name gives only the part number.

Compact 88.2 KB PDF for the 2SA1348, labelled a schematic but most likely a datasheet, given that the name contains nothing beyond the part number.

BIOS image labelled E6440A13 at 4 MB, most likely version A13 for the Dell Latitude E6440, although the name states only the code.

The 2SA1362 gets this 201 KB PDF, which carries only the part number and is therefore most likely the manufacturer datasheet rather than a board schematic.

For the 2SA1356, this 177 KB PDF carries just the part number, so it is most probably the device datasheet rather than a full circuit diagram.

The 2SA1352 is the only identifier in this 149 KB PDF name, so treat it as the transistor datasheet even though the index calls it a schematic.

EFI firmware archive for Apple logic board 820-2883, with the suffix A, probably denoting the board revision. This number belongs to the 13-inch MacBook A1342.

PDF of about 151 KB referencing the 2SA1353 transistor. It is filed as a schematic, but the bare part-number name indicates a component datasheet.

Reference sheet for the 2SA1346 in an 87.7 KB PDF. The name gives only the part number, so despite being indexed as a schematic it is most likely the device datasheet.

Filed under schematics, this 115 KB PDF is named only with the part number 2SA1319, which follows the Japanese JIS scheme where the 2SA prefix marks a PNP bipolar…

Component document covering the 2SA1371, a JIS-numbered PNP transistor; under that system the 2SA prefix denotes a high-frequency PNP device.

Apple archive for the K22 project at PVT stage, with reference 051-7845. Apple uses 051- numbers for schematic and design documents.

Firmware archive for the Apple MacBook Pro model A1398, EMC 2745, compressed into a 5.14 MB ZIP.

ASRock H61M-VS revision 2.00 boardview in BDV form, matching PCB code 70-MXGKH0-A02 and packed as RAR.

RAR archive of 1.16 MB for Apple logic board 820-2375 with an A suffix, most likely indicating revision A. No model or contents are stated in the name.

8 MB part of a BIOS set labelled E6440A13, pointing to version A13 for an E6440 board, with a matching 4 MB file in the same set.

Schematic PDF for Apple project K21, MLB drawing 051-8870 version 3.13.0, compressed in a 3.09 MB RAR.

ASRock Z170 Gaming K6 boardview, revision 1.04, matching the board code 70-MXGYQ0-A15 given in the name.

ASRock H61M-VS revision 2.00 boardview in .fz format, PCB code 70-MXGKH0-A02, packed into a 337 KB RAR archive.

BIOS dump for Apple logic board 820-2993 revision A, the Mac mini A1347 board, noting the HM65 chipset and a Macronix MX25L6405 flash chip.

Apple MacBook Air 4,2 boot ROM, version 0077 B12, for logic board 820-3023. Apple numbers its logic boards 820-xxxx, with a suffix letter for the revision.

Boardview for an Apple logic board numbered 820-00138, packed in ZIP; the leading 55946 looks like a catalogue index and no Mac model is named.