RAR archive labelled 2PESV-03, about 1.57 MB, with no brand, model or file type stated.

Apple firmware archive labelled only with the model number A1342, the polycarbonate MacBook, with no logic board number or revision given. The 7z file is 1.61 MB.

BIOS firmware for the Toshiba X500 and X505 series laptops, delivered as a 1.02 MB 7z archive.

ZIP archive of about 5.58 MB whose name, LB35B, gives little away; it may be a board or project code, but the device, brand and contents are not stated.

Firmware for the mainboard with PCB number 6050A2907701-MB-A01, an Inventec-style 6050A number with board revision A01. The laptop model is not given in the name.

DIS to UMA conversion files for Quanta board DA0LX6MB6F2, revision F, stored as a 1.17 MB RAR. Quanta uses this DA0 numbering on boards for several laptop brands.

Firmware dump for the Intel DH55HC motherboard, intended for a Winbond W25Q64BV flash chip. That chip holds 64 Mbit, or 8 MB, which the image should match exactly.

BIOS dump for the ASUS S530U / X530UN laptop, board revision 2.0, UMA build meaning integrated graphics.

Firmware archive for the Gateway NV52 notebook, an Acer-owned brand, packed as a 1.16 MB RAR file.

BIOS image for the HP 15-n018TU laptop, built on Quanta board DA0U81MB6C0. Quanta uses the DA0xxxMBxxx numbering widely on HP Pavilion 15 boards.

HP Pavilion BIOS for Inventec board 6050A2450801-MB-A02, marked ok, suggesting a working image, in a 3.81 MB RAR.

Datasheet for the MQ-3 gas sensor, a tin dioxide semiconductor sensor sensitive to alcohol vapour, widely used in breathalyser kits and hobby modules.

Firmware archive for the HP EliteBook 2760p, marked f63 and REVA, and labelled ok, which suggests a tested, working dump.

BIOS image for the Intel DG31PR desktop motherboard, a 512 KB binary matching a 4 Mbit flash chip. No BIOS version is given in the name.

512 KB BIOS image for the Intel D845RPI motherboard. No version, revision or tested flag accompanies the model name.

RAR archive of about 745 KB with firmware for the Quanta DAQT8HMB6B0 motherboard, the QT8 project.

Compact 462 KB PDF schematic for a laptop labelled G1S. The name states only the model code, with no brand, revision or board number, and the small size suggests it may…

BIOS ROM for the Dell Latitude D820 notebook, 1.00 MB, sized for an 8 Mbit flash chip. The name gives no BIOS version, board revision or graphics variant, so confirm the…

BIOS image of 512 KB for the Intel DG31PR desktop motherboard, an Intel G31 chipset board.

Firmware for the K50IL notebook in a 634 KB zip, with AS201 most likely marking BIOS version 201. It suits this K50 variant only, so verify the model label before use.

ZIP archive of BIOS firmware for the HP CQ57 notebook, 1.85 MB compressed. The name gives no board number, revision or BIOS version, so open the archive and inspect the…

BIOS dump that the name ties to the HP Pavilion dv9500 series, with a trailing 2 that likely marks a second copy or variant.

KB9012 embedded controller dump for the Packard Bell TE11BZ on Compal board LA-8531P, 128 KB, listed under Acer, which owns the Packard Bell brand.

Bosch Sensortec datasheet for the BMP180 digital barometric pressure sensor, document BST-BMP180-DS000-09, 656 KB PDF. The 09 suffix indicates the document revision.

Datasheet for the AM2301 digital temperature and humidity sensor, a 577 KB PDF. The AM2301, also sold as DHT21, uses a single-wire bus with a proprietary timing…

Microchip datasheet for the PIC18Fxx8 family, the largest file in this set at 7.43 MB, where xx marks the different memory and pin-count variants.

Datasheet for the PCF8591, an 8-bit data acquisition device from Philips/NXP combining four analog inputs, one analog output and an I2C serial interface on a single…

ZIP archive of about 33 MB named simply pack, with no model, board number or file type indicated.

Firmware package for the ZEED4 receiver, version V8.29 dated 26 October 2021, in an 11.5 MB zip.

Firmware for the A9000 receiver, version V8.29, dated 26 October 2021, delivered as an 11.2 MB zip.

Working BIOS dump, judging by the OK in the name, for a machine labelled FOLIA 9470M, which most likely refers to the HP EliteBook Folio 9470m.

BIOS archive for the Quanta motherboard DA0Y0PMBAE0, with no revision, chip size or tested status stated in the name.

This datasheet PDF of 179 KB covers the 2SD2480 transistor and contains no further detail in its name.

PDF for the 2SD1992A NPN transistor, indexed as a schematic though the name points to a part datasheet.

The 2SK2843 is the only detail in this file name, an N-channel FET designation under the Japanese JIS scheme.

PDF sheet for the 2SK1381 transistor, an N-channel FET in the Japanese 2SK series, about 443 KB in size, which suggests full characteristic graphs and mechanical data.

A 341 KB PDF named for the 2SC5612, filed under schematics while most likely being the full component datasheet. JIS numbering assigns 2SC to NPN bipolar transistors.

Named simply 2SC3447, this 97.5 KB PDF appears under schematics but is most likely the transistor's datasheet.

Document for the 2SB1290 in PDF form, 57.9 KB, with a _1-2 suffix that possibly indicates a section or revision; the name does not say.

Documentation for the 2SB827 transistor in a 103 KB PDF, indexed among schematics. JIS part codes beginning with 2SB are assigned to PNP devices classed for…