| 0x01 | disposed | bool | Private | — |
| 0x0011 | 0x03 | padding / unreflected |
| 0x04 | in_progress | int | 1 flags | — |
| 0x08 | remote_ep | EndPoint | Private | — |
| 0x08 | current_socket | Socket | Private | — |
| 0x08 | socket_async_result | SocketAsyncResult | 1 flags | — |
| 0x08 | <ConnectByNameError>k__BackingField | Exception | Private | — |
| 0x08 | <AcceptSocket>k__BackingField | Socket | Private | — |
| 0x04 | <BytesTransferred>k__BackingField | int | Private | — |
| 0x01 | <DisconnectReuseSocket>k__BackingField | bool | Private | — |
| 0x0045 | 0x03 | padding / unreflected |
| 0x04 | <LastOperation>k__BackingField | SocketAsyncOperation | Private | — |
| 0x004C | 0x04 | padding / unreflected |
| 0x10 | <ReceiveMessageFromPacketInfo>k__BackingField | IPPacketInformation | Private | — |
| 0x08 | <SendPacketsElements>k__BackingField | SendPacketsElement[] | Private | — |
| 0x04 | <SendPacketsFlags>k__BackingField | TransmitFileOptions | Private | — |
| 0x04 | <SendPacketsSendSize>k__BackingField | int | Private | — |
| 0x04 | <SocketError>k__BackingField | SocketError | Private | — |
| 0x04 | <SocketFlags>k__BackingField | SocketFlags | Private | — |
| 0x08 | <UserToken>k__BackingField | object | Private | — |
| 0x08 | Completed | EventHandler<System.Net.Sockets.SocketAsyncEventArgs> | Private | — |
| 0x10 | _buffer | Memory<System.Byte> | Private | — |
| 0x04 | _offset | int | Private | — |
| 0x04 | _count | int | Private | — |
| 0x01 | _bufferIsExplicitArray | bool | Private | — |
| 0x00A1 | 0x07 | padding / unreflected |
| 0x08 | _bufferList | IList<System.ArraySegment<System.Byte>> | Private | — |
| 0x08 | _bufferListInternal | List<System.ArraySegment<System.Byte>> | Private | — |