Earlier this month Corsair released new DDR4 memory kits under its Vengeance LPX brand. The kits come in 32 GB, 64 GB, and 128 GB capacities and come bundled with a 40mm "Vengeance Airflow" RAM cooler.
At the top end, the 128 GB kit comes with eight 16 GB modules clocked at 3,000 MHz and with CAS latencies of 16-18-18-36. At stock speeds it is running at 1.35 volts. Stepping down to the lower capacities gets you faster DIMMs. Corsair has the 64 GB (4 x 16 GB) kit clocked at 3,333 MHz and runs at the same voltage and CAS latencies. The 64 GB kit does come with either black or red heat spreaders as well. Lastly, the 4 x 8 GB (32 GB) Vengeance LPX kit runs off of the same 1.35 volts but is clocked at 3,600 MHz (16-19-19-39 rated latencies). It also comes in black and red SKUs.
The memory kits are available now and are currently priced a bit below their MSRPs at Newegg. The 32 GB kit is $340 and the 64 GB kit is $526. Finally, the 3,000 MHz 128 GB kit will set you back $982. These prices seem more competitive than the last time I looked at DDR4, and there certainly does seem tot be some room for overclocking (especially on that 128 GB kit) so long as the motherboard can handle it!