Sony USM4GN

4 GB USB Flash Drive
Brand • Model • Rev	Sony USM4GN
Interface	USB 2.0
Connector	Male A
Form factor	dongle w/ retractable connector
ID:054c:0439 Windows: USB\VID_054C&PID_0439
Chip1	Silicon Motion SM3257EN
Other
Categorized as	USB Flash drive
Additional chips NAND Flash;Samsung;K9ABGD8U0B-SCB0;;1;
Probable Linux driver unknown USB ID not yet observed in any mainline kernel / this list (note: outdated)
Retail
UPC	027242819269 (UPC DB, On eBay)
ASINs	B004GNXVRQ B0043FQG4C
Country of manuf	Taiwan

Silicon Motion not currently documented.

Overview

"47G0135S011J", a date code of 1220 (May 2012), and "BC1U3A"

is silkscreened on the board of the device populating this entry.