This branch is defined by the Y-Haplotree at FamilyTreeDNA as I-M170. There, it is the child of the IJ-P124 branch.
M170, CTS10058, CTS1006, CTS11441, CTS2193, CTS2514, CTS2536, CTS3517, CTS4088, CTS4848, CTS4982, CTS5650, CTS5908, CTS6265, CTS674, CTS7329, CTS7502, CTS7831, CTS8333, CTS8345, CTS8420, CTS88, CTS8876, CTS9264, L41, L578, L751, L755, L756, L758, L772, M258, P212, P38, PF3574, PF3578, PF3586, PF3588, PF3590, PF3594, PF3596, PF3600, PF3604, PF3605, PF3611, PF3612, PF3616, PF3618, PF3625, PF3639, PF3640, PF3641, PF3642, PF3654, PF3660, PF3666, PF3672, PF3675, PF3677, PF3686, PF3694, PF3780, PF3800, PF3804, PF3806, PF3807, PF3809, PF3811, PF3814, PF3815, PF3819, PF3822, PF3836, PF3837, YSC0000256, YSC0000260, YSC0000267, YSC0000272, YSC0000280, YSC0000281, YSC0000298, YSC0000300
This branch is defined by YFull as I. There, it is the child of the IJ branch.
PF3695, PF3806, PF3625, PF3670, CTS4340, CTS5764, Y1841, PF3620, PF3642, CTS7831, PF3800, CTS11441, PF3809, L755, PF3665, U179, PF3687, PF3617, CTS4664, PF3603, PF3813, PF3604, PF3618, CTS772, CTS2514, CTS4088, PF3815, PF3814, L772, CTS88, PF3794, CTS4272, PF3666, Y1909, CTS4273, L578, PF3649, CTS674, V218.1, CTS7540, L846, CTS5946, L758, PF3574, M258, CTS10058, Y1869, CTS8333, PF3661, CTS5650, PF3780, CTS4982, PF3675, YSC0000256, CTS6343, M170, CTS7329, CTS3517, CTS4848, CTS6231, L756, Y1903, PF3640, PF3639, PF3668, PF3836, CTS4239, CTS8963, CTS4209, PF3797, PF3611, CTS9264, CTS6497, P212, CTS3076, CTS10941, CTS8545, PF3660, PF3575, PF3590, PF3616, PF3592, PF3600, Y1834, Y1942, Y1953, Y1954, PF3817, CTS11979, PF3807, CTS6334, CTS7502, PF3594, PF3694, CTS4077, PF3864, PF3654, CTS9838, Y1877, PF3589, Y125171, CTS48, CTS6344, YSC0000272, CTS7469, CTS1800, CTS8870, PF3578, PF3586, CTS6271, PF3795, PF3796, CTS11369, CTS5016, PF3588, CTS7026, PF3799, PF3672, L847, YSC0000267, PF3641, L1197, CTS9618, L41, CTS9860, PF3837, CTS8420, YSC0000300, CTS3641, L503, CTS646, PF3677, L751, CTS5150, PF3822, CTS7593, L844, PF3645, CTS8345, Y1865, CTS6265, CTS6751, CTS1301, P38, Y1847, PF3689, PF3599, FGC77156, Y1880, PF3601, PF3622, PF3612, Y1931, PF3605, CTS8742, CTS2536, YSC0000281, CTS2387, CTS8064, CTS8876, CTS3383, PF3833, Y1878, PF3679, CTS9269, CTS11779, PF3811, PF3602, CTS5263, CTS1325, FGC77160, PF3769, CTS4745, PF3803, CTS5908, PF3819, PF3585, CTS9484, CTS11540, CTS2193, CTS3384, CTS4752, CTS4637, CTS1006, CTS70, CTS1555, Y1955, PF3804, Y1934, CTS5622, Y22439, Y1963, Y1959, PF3596, CTS8300, PF3829, PF3692, Y1914_2, Y1914_1
Peer reviewed sources have not been added for this branch yet. If you know of one I have missed, please link to it in the comments.