Do they work together in same system?
Mobo:Gigabyte H61 M-S2-V3
Twinmos 2GB, DDR3, Bus Speed- 1333, CAS Latency - 9, Voltage - 1.5V
+
Transcend 4GB, DDR3, Bus Speed- 1333, CAS latency- 9, voltage- 1.5V
OR
Transcend 4GB, DDR3, Bus Speed- 1333, CAS latency- 9, voltage- 1.5V
+
Twinmos 4GB, DDR3, Bus 1333, Number of Pin - 240, CAS Latency - 7, Voltage - 1.5V
Mobo:Gigabyte H61 M-S2-V3
Twinmos 2GB, DDR3, Bus Speed- 1333, CAS Latency - 9, Voltage - 1.5V
+
Transcend 4GB, DDR3, Bus Speed- 1333, CAS latency- 9, voltage- 1.5V
OR
Transcend 4GB, DDR3, Bus Speed- 1333, CAS latency- 9, voltage- 1.5V
+
Twinmos 4GB, DDR3, Bus 1333, Number of Pin - 240, CAS Latency - 7, Voltage - 1.5V