Altera Corporation is an American manufacturer of programmable logic devices (PLDs), reconfigurable complex digital circuits. The company is a wholly owned subsidiary of Intel. Altera released its first PLD in 1984. Alteras main products are the Stratix, Arria and Cyclone series FPGAs, the MAX series CPLDs, Quartus II design software, and Enpirion PowerSoC DC-DC power solutions. Altera and Intel announced on June 1, 2015 that they have agreed that Intel would acquire Altera in an all-cash transaction valued at approximately $16.7 billion. As of December 28, 2015, the acquisition had been completed. The Stratix series FPGAs are the companys largest, highest bandwidth devices, with up to 1.1 million logic elements, integrated transceivers at up to 28 Gbit/s, up to 1.6 Tbit/s of serial switching capability, up to 1,840 GMACs of signal-processing performance, and up to 7 x72 DDR3 memory interfaces at 800 MHz. Cyclone series FPGAs and SoC FPGAs are the companys lowest cost, lowest power FPGAs, with variants offering integrated transceivers up to 5 Gbit/s. In between these two device families are Arria series FPGAs, which provide a balance of performance, power, and cost for mid-range applications such as remote radio heads, video conferencing equipment, and wireline access equipment. Arria FPGAs have integrated transceivers up to 10 Gbit/s.