: SATA III ports for hard drives and SSDs. M.2 slots for NVMe SSDs.
To understand why these markings exist, it helps to know how printed circuit boards (PCBs) are labeled. Every commercially sold motherboard must comply with various international regulations:
The specific alpha-numeric code does not refer to an individual motherboard model number, but is instead a highly specific regulatory, factory, or manufacturing marking frequently stamped onto a popular lineage of Intel Corporation desktop boards. Most commonly, this exact sequence is physically printed on systems utilizing the legendary Intel E210882 printed circuit board (PCB) design footprint. These boards span several generations of classic PC architecture, including legacy LGA 775 legacy platforms up to second- and third-generation Intel Core series (LGA 1155) setups.
What Is a Motherboard? Definition, Types, Components, and Functions intel desktop board 01 21 b6 e1 e2 er new
: Intel's official website has a product support page where you can search for motherboards by their product name, number, or other identifiers.
: Represents factory routing, structural layout revisions, or specific multi-region emissions compliance profiles utilized during assembly. Technical Specifications & Generations
: LGA 1155, which supports 2nd and 3rd Generation Intel Core i3, i5, and i7 processors. : SATA III ports for hard drives and SSDs
The string "01 21 b6 e1 e2" likely follows this same pattern of regulatory codes. The "er" that appears in your search may be a partial reading or a mistaken inclusion from a similar board marking.
You might be looking for this specific board for a few reasons: Direct Replacement:
: Standard PCIe x16 slots for dedicated graphics cards and legacy PCI or PCIe x1 slots for other peripherals. Identifying Your Specific Model Every commercially sold motherboard must comply with various
The small sticker on the corner of the anti-static bag read Intel Desktop Board 01 21 B6 E1 E2 E2 ER
: Typically supports the latest CPU sockets from Intel at the time of its release, such as LGA 1200, LGA 1700, etc.
EV91510A.86A.0209
If you can boot into your operating system, free software tools can instantly identify your hardware. Programs like CPU-Z, Speccy, or HWiNFO will report the motherboard manufacturer and the exact model number.