BU40N Industrial Automation Communication Module: Comprehensive Technical Overview
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The three BU40N units in this 28 February 2026 record are slim optical drives labelled HL Data Storage UHD Blu-ray / DVD Writer. Their labels show model BU40N, 5 V DC and Made in China. They are not the industrial communication modules named in the retained article title.
Identification and delivery details
The photograph of all three labels establishes the delivered product category. A separate close-up reads BU40N (AL0K114), Lenovo P/N SDX0K84171, FRU P/N 45K0496, revision 101 and firmware GF00. The same label says MANUFACTURED: DECEMBER 2016 and includes a Lenovo identification sticker dated December 2016. These values identify the photographed variant; they should not be replaced with generic BU40N firmware or laptop compatibility claims.
The rear view exposes a slim two-section connector. The front bezel carries compact-disc, DVD and Blu-ray markings and a small front control. Reverse views show the pressed-metal cover, its mounting points and the stepped profile. No Ethernet, serial terminal block or DIN-rail mount appears in the photographs, so the former Modbus and RS-232/485 descriptions have no evidence here.
The stock note records three new units with a one-year warranty. The December 2016 manufacture marking makes these older dated units at the time of the 2026 entry; recorded new condition does not mean recent manufacture. The 0.5 kg weight field is not treated as the measured mass of each drive. No read/write test, supported-disc-speed table or host-system test accompanies the record.
| Item | Evidence |
|---|---|
| Actual category | HL Data Storage UHD Blu-ray / DVD Writer |
| Model and variant | BU40N (AL0K114) on the clear label |
| Labelled supply | 5 V DC; no current figure established here |
| Lenovo identifiers | LN P/N SDX0K84171; FRU P/N 45K0496 |
| Revision and firmware | REV 101; F/W GF00 |
| Manufacture and origin | December 2016; Made in China; manufactured by HLDS |
| Visible interface | Slim rear two-section connector; front optical-drive bezel |
| Quantity and sales terms | Three; recorded new; one-year warranty |
| Record date and weight | 28 February 2026; 0.5 kg recorded field |
| Unverified operation | No disc read/write or host compatibility test supplied |
Swipe or scroll horizontally to read the full table.
Source: seven photographs, the inspection video and the stock note. Optical-drive identity is read directly from the labels; no protocol or PLC-function claims are retained.
Matching this part
Match the host's required drive model, Lenovo FRU, bezel shape, mounting arrangement and connector. Include the original unit's firmware and complete variant label. The BU40N model alone does not establish that every bezel or host installation is the same.
If a specific media format matters, request a demonstrated read/write test with that format and the proposed host. The UHD Blu-ray / DVD Writer wording identifies the product, but the photographs do not establish a software configuration or certify operation of these individual drives. Confirm those requirements against the offered unit.
Photos and recorded media
Recorded inspection clip. The clip is retained as delivery evidence; no performance measurement is inferred from it.
Related records and products
Send the original optical-drive label and host-device details through the contact page. The Lenovo FRU and complete BU40N variant are more useful for this enquiry than the retained communication-module article title.
Request this part
Request BU40N with required quantity, host model, FRU and bezel photographs. Confirm the offered unit's dated stock condition, firmware, disc-test scope and one-year recorded warranty.
Need a quote for this part?
Send us the part number or article link — we will confirm price, availability and lead time.
