Table:
text: Intel
Solid-state drives (SSD)
Intel SSDs
Model Codename Capacities_GB NAND_type Interface Form_factor Controller Seq_read_write_MB_s Rnd_4KB_read_write_IOPS_K Introduced
910 Ramsdale 400/800 25nm MLC-HET PCIe 2.0 × 8 PCIe Intel/Hitachi 2000/1000 180/75 April 2012
335 Jay Crest 80/180/240 20nm MLC SATA 6 Gbit/s 2.5 SandForce 500/450 42/52 October 2012
S3700 Taylorsville 100/200/400/800 25nm MLC-HET SATA 6 Gbit/s 1.8/2.5 Intel 500/450 72/34 November 2012
525 Lincoln Crest 30/60/120/180/240 25nm MLC SATA 6 Gbit/s mSATA SandForce 550/520 50/60 January 2013
S3500 Wolfsville 80/120/160/240/300/400/480/600/800 20nm MLC SATA 6 Gbit/s 1.8/2.5 Intel 475/450 75/11.5 June 2013
530 Dale Crest 80/120/180/240/360/480 20nm MLC SATA 6 Gbit/s M.2/mSATA/2.5 SandForce 540/490 41/80 July 2013
Pro 1500 Sierra Star 80/120/180/240/360/480 20nm MLC SATA 6 Gbit/s M.2/2.5 SandForce 540/490 41/80 Sept 2013
Model Codename Capacities (GB) NAND type Interface Form factor Controller Seq. read/write MB/s Rnd 4KB read/write IOPS (K) Introduced

text: Intel
Solid-state drives (SSD)
Intel SSDs
Model Codename Capacities_GB NAND_type Interface Form_factor Controller Seq_read_write_MB_s Rnd_4KB_read_write_IOPS_K Introduced
510 Elmcrest 120/250 34nm MLC SATA 6 Gbit/s 2.5 Marvell 500/315 20/8 Mar 2011
320 Postville Refresh 40/80/120/160/300/600 25nm MLC SATA 3 Gbit/s 1.8/2.5 Intel 270/220 39.5/23 Mar 2011
311 Larsen Creek 20 34nm SLC SATA 3 Gbit/s 2.5/mSATA Intel 200/105 37/3.3 May 2011
710 Lyndonville 100/200/300 25nm MLC-HET SATA 3 Gbit/s 2.5 Intel 270/210 38.5/2.7 Q3 2011
520 Cherryville 60/120/180/240/480 25nm MLC SATA 6 Gbit/s 2.5 SandForce 550/520 50/80 February 2012
313 Hawley Creek 20/24 25nm SLC SATA 3 Gbit/s 2.5/mSATA Intel 220/115 36/4 April 2012
330 Maple Crest 60/120/180/240 25nm MLC SATA 6 Gbit/s 2.5 SandForce 500/450 22.5/33 April 2012

Question: What interface does Sandforce, codenamed Sierra Star, use on Intel's SSDs, Solid State Drives (SSD)?