MAC address vendor

DataFab Systems Inc. — 2 prefixes (MA-L)

Primary prefix
00:30:FF
Block
MA-L

Summary

// what this is
DataFab Systems is registered to MAC prefix 00:30:FF and 1 more in the IEEE OUI database. When a device's MAC address begins with 00:30:FF, that block was registered by DataFab Systems — the OUI identifies the maker of the network hardware, which is not always the brand on the device.
// analyst note
A MAC in the 00:30:FF or 00:25:D9 range identifies DataFab Systems-manufactured flash-storage peripheral hardware. Current operating status of the company is Unknown; no CVE/NVD record or malware association was found as of an August 2026 search, but this is an unconfirmed negative, not a confirmed-clean verdict.
[ 01 ] — Context

About this vendor.

Updated  ·  Confidence: Medium

A MAC address starting with 00:30:FF or 00:25:D9 belongs to DataFab Systems Inc., a Taiwan-based manufacturer best known for flash-memory card readers, writers, and interface adapters. Both prefixes are dedicated MA-L (24-bit OUI) assignments registered solely to this organization — neither is a shared IEEE Registration Authority base block, so either range legitimately points to DataFab-made hardware rather than a pool of unrelated vendors.

DataFab Systems is a real, identifiable company rather than a bare registration. A Taiwan business-directory profile describes it as founded in 1992 and OTC-listed on Taiwan's TAISDAQ market under stock code 6199 since November 2002, with ISO 9001:2000 and ISO 14001:2004 certifications reported. Its product line is corroborated independently: archived manuals and driver pages document CompactFlash, PCMCIA, USB 2.0, ExpressCard, and FireWire card readers/adapters, and a DataFab reader was reviewed alongside a PQI product in early-2000s hardware press.

The two OUI assignments carry different registered addresses — Room #1910, 19F, No. 333, Taiwan, TW R.O.C. for 00:30:FF, and 385-3 Hongzun Road, Pingzhen City, Taoyuan County, TW 32466 for 00:25:D9 — consistent with a later re-registration rather than two unrelated firms sharing a name. No live corporate website was found in this pass, so current operating status (active vs. dormant/dissolved) is Unknown.

IEEE's public the IEEE MA-L registry exposes no assignment or registration date; any "registered on" date shown by third-party lookup tools for these prefixes is a database artifact, not an IEEE fact, and is not reproduced here. No CVE or NVD record was found for DataFab or DataFab Systems as of an August 2026 search, and no malware/trojan association surfaced in general web search — treated as an unconfirmed negative, not a confirmed-clean verdict, given the age of the hardware.

IEEE assignment
00:30:FF, 00:25:D9 → DataFab Systems Inc. [Confirmed] — the IEEE MA-L registry 0030FF, the IEEE MA-L registry 0025D9
Registry / block size
MA-L (24-bit OUI); 2 dedicated IEEE prefixes, not a shared RA base [Confirmed] — the IEEE MA-L registry 0030FF, the IEEE MA-L registry 0025D9
HQ / country
Taiwan (two registered addresses across the two assignments; see Identification) [Confirmed] — the IEEE MA-L registry 0030FF, the IEEE MA-L registry 0025D9
Company status
Unknown (founded 1992, TAISDAQ code 6199 per directory listing; no live vendor website found) [Likely] — business.com.tw/cop/com.php?id=kcnzbmk7xc5elrs
Device types
Flash memory card readers/writers, PCMCIA/USB/ExpressCard/FireWire adapters [Likely] — archive.org/details/mdcfesr, cybarcode.com/datafab/other/mdcfe-sr
Notable products
MDCFE-SR CompactFlash parallel-port adapter; ImageMaster USB card reader [Likely] — archive.org/details/mdcfesr, ixbtlabs.com/articles2/readers-pqi-datafab/index.html
Verified sample prefixes (both MA-L, DataFab Systems Inc.)
00:30:FF, 00:25:D9 [Confirmed] — the IEEE MA-L registry 0030FF, the IEEE MA-L registry 0025D9
Date caveat
IEEE's the IEEE MA-L registry publishes no assignment/registration date; third-party "registered on" dates for these prefixes are database artifacts, not IEEE facts [Confirmed] — the IEEE MA-L registry 0030FF, the IEEE MA-L registry 0025D9
Special note
Both prefixes are dedicated, non-pooled assignments to a single named organization — a MAC in either range indicates DataFab-manufactured hardware, unlike shared IEEE-RA base blocks (e.g. 70:B3:D5) that must never be attributed to one vendor
[Confirmed] — the IEEE MA-L registry 0030FF, the IEEE MA-L registry 0025D9
Related vendors
None identified [Unknown]
Analyst note
A MAC in the 00:30:FF or 00:25:D9 range identifies DataFab Systems-manufactured storage-peripheral hardware; the company's current operating status could not be confirmed, so treat as legacy/likely-discontinued consumer hardware rather than an actively supported product line
[Likely] — business.com.tw/cop/com.php?id=kcnzbmk7xc5elrs
[ 02 ] — OUI prefixes

Assignments by IEEE.

2
// registered prefixes2
  1. 00:30:FFMA-L
  2. 00:25:D9MA-L
[ 03 ] — Related

Keep digging.