Memblaze (Beijing Memblaze Technology Co., Ltd.) holds two IEEE registrations under one organization: a full 24-bit MA-L block, 8C:15:53, and a 28-bit MA-M block, 38:B1:9E:7 — both carrying the same registry address in Haidian, Beijing. There is no MA-S/OUI-36 entry. The MA-M class is worth flagging for anyone parsing these MACs: an MA-M prefix is 28 bits, so the vendor boundary falls mid-byte and a naive 24-bit OUI lookup on 38:B1:9E will mis-attribute addresses that actually belong to other MA-M holders sharing the 38:B1:9E base. Memblaze, founded in 2011, is a Chinese enterprise-storage vendor specializing in PCIe-attached NVMe solid-state drives — the PBlaze line (PBlaze6 Gen4, PBlaze7 Gen5). These are host-bus storage devices rather than standalone networked appliances, so the practical question for anyone seeing this OUI in a capture is where the MAC lives: most plausibly a management Ethernet port on a Memblaze drive or its host platform, or an NVMe-over-Fabrics fabric interface in a data-center deployment (Memblaze publishes NVMe-oF reference designs with NVIDIA/Mellanox ConnectX adapters). The analyst takeaway: this is enterprise data-center storage hardware. An appearance on a consumer or general office network would be anomalous and worth a second look, whereas in a server-room or storage-fabric segment it is expected. No CVEs or security advisories specific to Memblaze products surfaced in this research pass.
- IEEE assignment
- 8C:15:53 → Beijing Memblaze Technology Co Ltd [Confirmed] — IEEE MA-L (enrichment/registries/oui.csv line 670)
- IEEE assignment
- 38:B1:9E:7 → Beijing Memblaze Technology Co Ltd [Confirmed] — IEEE MA-M (enrichment/registries/mam.csv line 5675)
- Registry / block size
- MA-L (24-bit OUI, 8C:15:53) plus MA-M (28-bit OUI, 38:B1:9E:7). No MA-S/OUI-36 entry — confirmed absent from enrichment/registries/oui36.csv [Confirmed] — IEEE MA-L / MA-M. NOTE: IEEE's public OUI data publishes NO assignment/registration date (the registry CSVs carry only Registry, Assignment, Organization Name, Organization Address); any "date registered" on third-party tools is a database artifact, not an IEEE fact.
- HQ / country
- Building B2, Dongsheng Park, 66 Xixiaokou Road, Haidian, Beijing 100192, CN (registry address, identical on both assignments) [Confirmed] — IEEE MA-L / MA-M
- Company status
- active [Confirmed] — memblaze.com
- Founded
- 2011 [Confirmed] — memblaze.com/en/about-company/about-us, crunchbase.com/organization/memblaze
- Device types
- enterprise PCIe NVMe SSDs (PBlaze series: PBlaze6 Gen4, PBlaze7 Gen5); host-bus storage devices, not standalone network appliances [Confirmed] — memblaze.com, storagereview.com
- Notable products
- PBlaze6, PBlaze7 enterprise NVMe SSD families [Confirmed] — memblaze.com/en/product/pblaze7/658.html, storagereview.com
- Where the MAC likely lives
- a management Ethernet interface on a Memblaze drive/host platform, or an NVMe-over-Fabrics fabric interface (Memblaze + NVIDIA/Mellanox ConnectX reference deployments) [Likely] — network.nvidia.com/related-docs/solutions/SB_Memblaze_Mellanox.pdf
- Primary markets
- internet/cloud, finance, telecommunications, AI/big-data; Chinese hyperscalers and global enterprise data centers [Confirmed] — memblaze.com/en/about-company/about-us
- Registration date
- Unknown — IEEE publishes none for MAC/OUI prefixes, and no date column exists in the cached registry CSVs [Confirmed-absent] — IEEE MA-L / MA-M
- Security context
- no public CVEs or advisories specific to Memblaze products found in this pass; no known malicious association. Enterprise data-center storage hardware — unexpected on consumer/office networks. [Likely] — network.nvidia.com/related-docs/solutions/SB_Memblaze_Mellanox.pdf
- Analyst note
- MA-M is 28-bit — a 24-bit OUI lookup on 38:B1:9E alone will mis-attribute addresses outside the 38:B1:9E:7 sub-range. The 8C:15:53 MA-L block resolves unambiguously to Memblaze.