Assignment of Array to Property in class constructor

I'm writing classes to decode and persist Message's sent via TCP. Each message contains many DataField's. I have a simple class DataField class that holds some meta data, including a

private byte[] _content;
public byte[] Content
{
    get
    {
        return _content;
    }
    set
    {
        _content = value;
    }
}

I then inherit DataField to do the customised fields as required

    public GPSData(byte[] content)
    {
        this.FieldId = 0;
        this.FieldName = "GPS Data";
        this.FixedFieldLength = 21;
        this.RecordLength = 1;
        this.LengthType = DataFieldLengthType.Fixed;
        this.ActualFieldLength = content.Length;
        this.Content = content;

        if (ActualFieldLength != FixedFieldLength)
        {
            string message = this.FieldName + " is of Data Type " + LengthType.ToString() + ".  The ActualFieldLength passed in must match the FixedFieldLength";
            throw new ArgumentOutOfRangeException(message);
        }

        int i = 0;
        GPSUTCDateTime = BitConverter.ToUInt32(content, i);
        i += sizeof(UInt32);
        Latitude = BitConverter.ToInt32(content, i);
        i += sizeof(Int32);
        Longitude = BitConverter.ToInt32(content, i);
        i += sizeof(Int32);
        Altitude = BitConverter.ToInt16(content, i);
        i += sizeof(Int16);
        TwoDGroundSpeed = BitConverter.ToUInt16(content, i);
        i += sizeof(UInt16);
        SpeedAccuracyEstimate = content[i];
        i += sizeof(byte);
        TwoDHeading = content[i];
        i += sizeof(byte);
        PDOP = content[i];
        i += sizeof(byte);
        PositionAccuracyEstimate = content[i];
        i += sizeof(byte);
        GPSStatusFlags = content[i];
    }
}

Is this.Content = content; correct o ensure the array is assigned properly?

Should I perhaps use content.CopyTo(Content, 0);

Or is there another more correct option I should use.

Mostly worried because I don't see a new declaration in the class for the array to be allocated.