diff --git a/src/chunkedbuffer.h b/src/chunkedbuffer.h
new file mode 100644
--- /dev/null
+++ b/src/chunkedbuffer.h
@@ -0,0 +1,51 @@
+/*
+  Copyright © 2017 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CHUNKEDBUFFER_H
+#define CHUNKEDBUFFER_H
+
+#include <QPointF>
+#include <QRectF>
+#include <QVector>
+
+#define CHUNK_SIZE (1024)
+
+class ChunkedBuffer
+{
+public:
+    ChunkedBuffer();
+    ~ChunkedBuffer();
+
+    void addSamples(double* samples, size_t size);
+    void clear();
+
+    // QwtSeriesData related implementations
+    size_t size() const;
+    QRectF boundingRect() const;
+    double sample(size_t i) const;
+
+private:
+    size_t _size; // size of `data`
+    size_t numChunks;
+
+    QList<DataChunk*> chunks;
+};
+
+
+#endif // CHUNKEDBUFFER_H