U+3386 "㎆" Square Mb Unicode Character
Unicode Version 17.0
㎆
U+3386 "㎆" Square Mb is a precomposed CJK compatibility ideograph representing the unit symbol for megabit, abbreviated as Mb, typically used in computing and telecommunications to denote data transfer speeds or storage capacities. It is part of the CJK Compatibility block in Unicode, designed to maintain vertical text layout and compatibility with older East Asian character encodings by combining the Latin letters M and b into a single square-shaped glyph. This character is not a standard unit symbol in modern usage, which prefers separate letters, but it remains available for historical or specialized formatting needs.
General Properties
| Code Point | U+3386 |
| Version Added | 1.1 |
| Name | Square Mb |
| Unicode 1.0 Name | Squared Mb |
| Block | CJK Compatibility |
| General Category | Other Symbol |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Square |
| Decomposition Mapping | "M" U+004D Latin Capital Letter M "B" U+0042 Latin Capital Letter B |
Encodings
| HTML Decimal Encoding | ㎆ |
| HTML Hex Encoding | ㎆ |
| UTF-8 Encoding | 0xE3 0x8E 0x86 |
| UTF-16 Encoding | 0x3386 |
| UTF-32 Encoding | 0x00003386 |
| C/C++/Java Escape | \u3386 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Wide |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "m" U+006D Latin Small Letter M "b" U+0062 Latin Small Letter B |
| NFKC Simple Casefold | "m" U+006D Latin Small Letter M "b" U+0062 Latin Small Letter B |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Other |
| Sentence Break | Other |